You might try
www.OWWM.com
I think I remember some stuff on that subject there. I was going to do the same thing as you but a month ago I came across a better deal. Found a real deal 70's era Powermatic 143 on craigslist that had been dropped and had a few pieces broken. Found the broken pieces needed on line used.
Now I have an industrial quality metal or wood saw with 500.00 invested.
Still have to get a blade and couple small pieces but hope to have 600.00 in the whole thing.
You might check around you might get lucky too.
http://www.practicalmachinist.com/ and OWWM are both good places to learn about saws and find parts.