Find a welding shop and see if they can get u some high carbon steel 1/4" thick and to the length u want
I have seen some beautiful blade made from wire rope heated in a forge and hammered out that resemble Damascus steel
Use old industrial saw blades if u can find them also find a saw mill and see if u can buy a old blade or two from them. That's a good start for metal.
This was posted today, maybe it will help you for next time.
Thanks for all the advice everyone!
What type of handle would be easiest for a knife that just has the blade and a small little part that will go into the handle.