Hi Gerry - from the photos it looks like you have a "keyless" tuner pan; a picture of the top would help to see if it's all there. The three bell-cranks in the lower part of your last photo are GFI parts (or very similar) which suggests that they are compatible - that is good because that company is very helpful should you need to buy any bits.
I think you really need someone to spend a little time with you to help make decisions about lever placement and show you how to adjust the mechanism so it works properly. Particularly since it is a 12 string guitar - which can be one of several "universal" or one of a few "extended E9th" set-ups. The fact that I see only 4 pedals (3 on the guitar and one additional in the last photo?) suggests it was an extended E9th (popular "universals" have 7 - generally!).
I have no doubt that you're capable of doing the actual work, but think you'll need help to
understand the set-up. For example, there are some additional home-made parts to the knee-levers; those bits of wood and pipe lagging have been added to make the levers more "knee-friendly" (they're called 'flags') but if they go back where they are in the underside photo, the case lid won't close
Using the forum we will need to advise on almost each part you fit to the guitar - fun for us, but pretty aggravating for you trying to get the job done in reasonable time
