Did you decide to not try to make them yourself? It's really pretty easy if you got the tools or know someone who does. If you made them you might have at most $30 to $40 in them.
If you're still thinking of making them yourself feel free to PM me if you have any questions. I'll try to help you through it as best I can. If I had enough material left I would be tempted to make a set for you, but I used up most of my UHMW.