The only hard parts to find are the front fender and the front lower suspension pieces. There are lots of mods. Do a search to trizinger mods or yt60 mods at the top of the page. There is lots of good info on here. But not alot of need to repeat it. You can get that engine cleaner than that though. LOL Some people on here have their engine cases polished. When you say you are going to do a restore, I hope you are ready to get serious. There are a few people here that have done restorations better than original. Otherwise, your pretty much just doing a refresh. I know, picky about the words, but it takes alot to do a real restoration, and only a few on here have done it. Many people redo their trikes, but very few in my opinion are worthy of calling it a restore, and there are some very meticiously redone trikes here, believe me. Welcome to the boards. Good luck with your refresh. Feel free to pm most members on here, they can be very helpful. Do alot of searching with the "search" feature towards the top of the page. It will be very helpful to you and there is a ton of info on here too. Keep us posted on your progress.
Nicholson 500x (Project)
Nicholson 185s
Nicholson 110 (That takes an atc70 tank)
Ascott 500 head/350x (Project)
Homebuilt Racer Chromoly Suspension 110 (Ragin Runt)
PK Racing Suspension 70
A+ Inc Suspension 70
AWS Aluminum 90 frame
Hi Performance ATC Suspension frame rd350
Hi Performance ATC Suspension frame 90