First off, in which country would you be located?

Secondly, whenabouts? Because 'medieval times' can stretch from the 5th to 15th centuries, depending on who you ask, and encompasses a huge swathe of technological changes.

Finally, what sort of soldier are you outfitting? I ask because the equipment you've given - heavy armour, a sword and dagger, a helmet, a horse, and a pike - belong to a bunch of different types of soldiers. A 14th century man-at-arms could be wearing heavy armour and carrying a sword and poleaxe, or they could be in heavy armour, with a lance and mace, and riding a horse, for example. An English archer of the same period would have their bow, a sidearm of some sort, and some light armour and a helmet for defence. A 10th century Scandinavian warrior might have a spear, axe, knife, helmet, and shield, or if they were particularly wealthy, chain armour and a sword (or two, if Egils saga is to be used as a guide) replacing the axe in their kit.

As a follow up question, would such equipment be essential for a family to have, or was protection provided elsewhere? Would the fighting equipment be a worthwhile purchase?