Working on my dissertation, and part of it would involve me re-creating Ancient Greek arrowheads and armor (though, only small pieces of armor). Does anyone have some good resources on metal working in Ancient Greece? Setups, tools, etc? I've already got Pliny's Natural History and Encyclopedia of the Ancient Greek World.
Typical arrowheads are bronze, socketed, about 3-4cm long (including socket), bilobate or trilobate. Some are longer. Some are 4-bladed rather than 2 or 3. These are cast rather than forged. To make these, you'll need to be able to melt and cast bronze. The traditional casting method appears to be lost-wax casting, with the wax original itself being cast in a (re-usable) mold.
You can do this with relatively little equipment, using modern heat sources. You can also make replica arrowheads with other than the traditional technique (but still casting them). If you are interested in casting your own, some potentially useful instructional videos:
Do note that molten bronze and human skin are poor companions for each other, and pay due attention to safety. Note also the toxicity of metal vapour (especially if you opt for brass rather than bronze, where zinc is an issue, but also note lead etc. in many bronzes).
Both the Met Museum and British Museum have searchable online collections including Greek arrowheads, and are good sources for pictures and some measurements. You can also buy a replica to use as an original for use as a master (including 3D printed).
I don't recall seeing many iron arrowheads. These might have been quite common - bronze survives much better, so there is a preservation bias towards bronze.
What kind of armour?
Bronze plate: either start with bronze sheet of appropriate thickness, or forge to thickness. Cold forge, and heat and quench to relieve work hardening as needed. The former is the much easier approach.
Textile armour: no need to forge - just cut and sew. There are open questions about how Greek textile armour was made (see Gregory S. Aldrete, Scott M. Bartell, Alicia Aldrete, Reconstructing Ancient Linen Body Armor: Unraveling the Linothorax Mystery, JHU Press, 2013, for this (and a partisan answer to these questions)).
Wood: the main material for shields - they might have a bronze facing, but the main protection is the wood.
While it's earlier than your period, there is useful info about bronze armour in Dan Howard, Bronze Age Military Equipment, Pen and Sword, 2011, including a review of tests of the effectiveness of bronze armour.