Hey Dude, Wow, big list!
Ok, used parts: Suggest Travis at Barn of Parts, a vender here. Also Jim at Spa City Sled parts.
Both are great guys & have about everything you need.
Shocks: Have 2 guys (Both friends, both named Steve, and both do well! lol. Cannondale a vender here on TY.
Also my friend Steve does them also. Have to PM me for his number.
Overall, suggest focusing on one or 2 things first, then go on to the next thing as you fix them.
Focus on safety & getting it running first, so the Fuel Pump should be high priority.
On the Fuel Pump:
As you probably know, it should run for just a few seconds when you first turn the key on.
Does your dash go through the self test when first turned on?
Have you checked every fuse in the fuse box?
May want to test each one for continuity.
Are there any other electrical gremlins that you know of?
There may be, however you may not know that without it running also.
They have enough time on them, you may have an issue with the ground blocks.
Look up "Ground Blocks" on this site. (TY)
I can also help troubleshoot on the phone to help nail it down quickly. (Have to PM me for the number)
However, perform tests above first.
RockMeister