^^^ 100% on what C-money says there.
wanna go lo-rent? here's the schneider grind:
[URL]http://schneidercams.com/264-68RH_maghydroller.aspx[/URL]
or have them or any number of other folks regrind your cam: oregon, clay smith, crower, delta. then grab a hong-kong phooey air gap knock off on ebay, and a junkyard carb and throw a kit at it.
you'll still need the spring kit, and you'll need the cam snout adapter if you want to run a mechanical pump.
grab some thin headgaskets and a gasket kit and you're in the game-- you'll still need the oil pan, but that's cheap and easy, and figure out what flexplate or torque converter you're going to use.