Are you replacing the spring hangers too? If you're just replacing bushings you might be able to re-use the bolts. If you can get them off no problem then they can be cleaned up and used again.The two spring eye bushings at each end of the leaf spring should be the same, but the shackle...
Can't you use the stock filler neck and cap with the new valve covers? If that won't work just get creative. Whatever it takes to get a hose ran from the driver side valve cover to the airbox.
Get any bug & tar remover and soak the bad areas before giving it a good Dawn wash to remove whatever's on the paint. Then after you're done claying the paint you can try claying the windshield to see if it smooths it out at all.As for the decals, a little heat and your fingernail should be...
As far as rebuilding pressure, it's just a matter of resetting the switch and priming the fuel pump with a couple turns of the key before actually firing.
I always flip the inertia switch while the engines running and just wait til it stalls out. Then i crank it a few more times to make sure it's fully relieved. The inertia switch should be behind one of the kick panels, usually the passenger side.
Instead of taping the window up so everyone can see, i'd push the glass all the way up and pull the rubber from the track up to the bottom of the glass. Then just put some vice grips on the track, up tight to the rubber. A zip tie would work just as well.While you're in there you might want...