You can do this cheap without any problems.
A summit racing cam and lifters for 100.00
Get a summit racing double roller timing chain
Get the oil pump and gaskets from autozone (melling pump and felpro gaskets)
Have the rest done at the machine shop. (resize the rods, press on the pistons, clean the block, install the freeze plugs and cam bearings, turn crank, bore the block, freshen up the heads)
Get the bearings from the machine shop (M77's)
Could have the machine shop ****emble the engine also for 200.00.
Make sure the springs on the heads can handle the cam profile.
Get a high volume fuel pump.
A little bowl smoothing under the valves at the head/valve seat inferface will make another 20 hp!
No need to balance the engine.
I don't think a q-jet is a good choice for the performer rpm intake. The performer rpm is set up for a square bore carb (holley) not a spread bore carb (q-jet). A holley 750 w/vac secondary (3310) would make a nice combo with the performer rpm intake. The regular performer (not rpm) intake will mount to a q-jet.