Read the attached article and check out these two links.
10.95" Front Disc Brake Kit (referred to as 11" Discs)
11.75" Front Disc Brake Kit (referred to as 12" Discs)
Side-to-side tolerance is 1/8” so you need to even it out.
Changing ride height throws off your camber/caster so an alignment is needed once you have the ride height where you want it.
Just an Internet photo of an installed E-Body sway bar. The plates for the sway bar are the same for the 8-3/4" rear differential.
If you want to talk "points" for non-OEM, add the chrome diff cover and all of the incorrect suspension component colors.
For the original OP's question...
Correct “Street Hemi Orange” engine paint for 1970 is: Ditzler EQE-60626 w/ 25% Ditzler DX-265 flattening agent
and Uncle Tony's Garage has some very good guidance on prep and paint of the engine block.
This thread discusses the paint and application. Example...
@Challenger RTA
The 1971 340 engines (GW340 prefix at driver side front cylinder head deck) built at the Windsor Engine Plant in Canada were painted Street Hemi Orange.
340 engine assembly shifted during the 1971 model year to the Mound Rd Engine Plant in Detroit.
All Mound Road 340's (GM340...
I had the same thing. The TTI connections are extremely tight. I found that carefully tweaking them with an exhaust pipe expander made for an easier installation.
AutoZone’s free loan-a-tool program has a very nice kit to expand all sizes of pipe.
Once together, just use the stainless band...