This is a very complicated question to answer, and there isn't really a definitive price-list for armor and weapons. I'm not sure that there is an answer at all for the Viking, as we don't really have financial records from Vikings.

For the knight, the availability of materials and quality of materials and craftsmanship would factor into the price quite heavily. There was new armor intended to be sold to average soldiers and old armor that was still being worn second-hand, and these could be quite cheap. On the other hand, the fine parade armor worn for display by the kings and great magnates of Europe was incredibly expensive. The type and amount of armor that you've described here would have been at the high end of armor intended for use in battle, which means that it would be quite expensive.

That said, it's nearly impossible to provide an itemized accounting of how much these items would have cost. This is because usually if we have records for how much somebody spent on armor, it's all jumbled into one amount. So it's not very easy to tease out what the individual pieces cost. Take for example Joinville's accounting of how much his armor cost. He remarks in the Life of Louis that he would need 800 pounds to mount and arm himself and feed himself and two knights. A livre is a monetary unit like a dollar or a pound. However, this doesn't really help us figure out how much the armor itself or any particular piece actually cost! It's not easy to find the range of the cost of armor, either, but I can try to give you some touch-stones.

First, a word on currency. Medievalists work in solidi, pounds, and livres for the most part. These are all kind of sort of equivalent such that a livre in France in 1350 was probably roughly worth a pound in England in 1350. It's a lot harder to account for inflation/deflation across time.

It's easiest to tease out numbers on the horse. In the fourteenth century, a good horse fit for battle would cost around 25 pounds. On the other hand, in the mid 13th century Joinville remarks that Louis wouldn't give him the horse of a disgraced knight because it was still worth "eighty to a hundred pounds, which was no small sum." In 1337 Edward III paid 168 pounds for a warhorse, and that seems to be at the very high end.

The average knight would have purchased a hauberk or mail shirt, a sword, and a horse in preparation for battle, along with other necessary items. Andrew Ayton estimates that the average cost for a simple knight to outfit himself during the hundred year's war was approximately 40 to 50 pounds. The list of armor you've given far exceeds this. It would probably cost, including the horse and horse's armor, between 100 and 150 pounds, at the low end.

Now, the final part of your question is the hardest! It's nearly impossible to calculate an exchange rate between medieval currency and modern currency. Too many economic and social factors have changed. Instead, we tend to make comparisons to things like income from land (via rents). So, the 40 pounds that it would take the average knight to equip himself is actually roughly equal to the amount of income the average knight would receive from land rent in a year! You could think of this like the average middle class person in the US going to buy a new, mid-range mercedes. It's going to cost them their entire salary for the year so they'll either have to save up for it or take out a loan. Comparatively, a peasant family would earn somewhere around 2 pounds per year, and could never afford a war horse or armor.

Of course, some knights were wealthier and therefore could afford more expensive sets of armor. There was a trial by combat in 1386 between a knight and a squire, and we know that the knight had a set of armor similar to what you've described. Although we don't know how much the knight's armor cost, we do know that his estates produced roughly 400 to 500 livres in a year. That's ten times what the average knight would earn and more that 200 times what the average peasant family would!

sources:

Memoirs of the Crusades by Jean de Joinville and Geoffroi de Villehardouin

Medieval Warfare: A History by Maurice Keen. I especially quoted from Andrew Ayton's article Arms, Armour, and Horses.

Medieval Weapons: An Illustrated History of their Impact by Kelly DeVries and Robert D Smith.

The Last Duel: A True Story of Crime, Scandal, and Trial by Combat in Medieval France by Eric Jager.

The main issue with your question is the range. The medieval time period lasted a LONG time. Also, the quality and locaton of the armor and knight affected a lot. Europe had many vast economies. If you could narrow down the question, I'm sure the question could be answered.