SBC 350 build

[Bowtiepickups]

Alright everybody, here's the deal. It turns out I have a crazy awesome dad. I just found out he bought me a 71 C10 and it is sitting in storage for me come spring time. It has a stock 350 other than headers and vortec heads and a stock TH350 behind it. I want to redo the top end of the motor and I was hoping for some insight from the community. This is obviously my first time rebuilding a motor and I have my old man for an extra set of hands and insight but I need help on a few parts. Here's my plan so far:

Motor
Heads: Brodix IK180 64CC combustion chamber- 2.02 in 1.60 ex
Intake: Edelbrock Performer RPM Air Gap
Cam: COMP Thumpr cam and lifters
Duration@.50:In-243 Ex-257
Lift:In-.500 ex-486
Comp Roller Timing Set
Carb: Holley Ultra Street Avenger 670 CFM
1" Carb Spacer
MSD Pr Billet Distributor/Strret Fire Coil/Street Fire Plug Wires/NGK G-Power platinum

Tranny
TH350
B&M Transpak
Hughes 2500 Stall converter (opinions on stall?)
Aluminum deep pan

My boggles are mainly push rods
(length), rockers, (roller worth it) and do I have it way over cammed? Any insight is greatly appreciated. It's going to be my daily driver but I want to have some power. Thanks in advance everybody.

http://www.pinkbike.com/photo/6070164/