Use the 350 block
Use the #94 heads
Use the 10/10 crank
Use the bearings you have too
Use the 76 intake you have , just need the 72-79 intake set for it to work. Use a 1972 up gasket set for the assembly.
You also have timing set , use that
The cam you listed 198/212 @.050 is an ok choice for a close to stock setup
About the only thing I dont see is an oil pump and gasket set. That shouldnt run more than about 200 bucks . That will give you a running engine.USE A STOCK Pressure Oil pump, not high volume/high pressure.
Do you have timing cover and balancer/pulleys and engine brackets?
Is the intake a 2 barrel?
Fact is stranger than Fiction