New to the Forum

[PaddyR]

Hello everyone, this is my first post. I've been a member for a few months now. I'm overwhelmed with the knowledgable folks on this site and the vast amount of information available. Over the next few months I'll be leaning on you guys and gals and bending your ears.

I've wanted to do a C10 project for many years and recently located a barn find. Actually it was stored in a truck box since 1990! Spent its working life in Tennessee was sold new by EB Smith Chev in Nashville. Its a 1970 SWB has a 307 three speed on the column power steering and HD leaf suspension, HD shocks with 6ply tires. Pretty weird suspension and tire options for a short box.
Has original paint which for now I'm leaving as the original patina.
I'd like to drive it a couple years before I do the body and paint.
The plan is to go to 5 lug, lower with an axle flip and drop spindles with disc brakes and lowering coils in the front if needed
Here is my first question.
The rear leaf has the additional helper spring G70 option and F 52 HD shock option. The fender well height is 33.5" rear and 32.75 front
My understanding is an axle flip kit will give me a 5.5" approx. drop.
For the truck to sit level would or should I use a 2" lowering coil as well as a 2.5" drop spindle?