5.7 questions please help

The starter need not be clockable. Use one of the ones recommended by TTI and you won't have a problem.

TTI also sells mounts. I used their 58SMA73's with modifications but they will probably be fine for you out of the box.

I also bought the oil filter block off plate but wound up not using it. My motor mount mods/fabrication allowed me to keep the filter on the engine and have the A/C compressor in the stock 6.1 location. If you can weld, you can do this also. If I had to do it over, I wouldn't have spent the $250 on the TTI mounts. I ended up using just the "spool" part which is basically just a leaf spring front eye bushing.

I used a Weldtech pan because it has better baffling for road course/street driving, plus it's aluminum. http://www.weldtechstainless.com/

Assuming you're keeping the fuel injection, are you keeping the factory computer and injectors? If so the A1000 pump is rated at 45 psi while the spec for the fuel pressure on most 5.7's is 58 psi. You must have 58 +/-5 psi if you're using a factory calibration.