Can anyone possibly help me with wiring diagrams , and a parts list for one of these lifts . Thing is in really good shape , believe it has a safety switch issue , and one of the ramp cables is frayed down to one lay holding on for dear life !

Goodluck. In my experience the manufacturer is ridiculous to work with. They won't help anyone whose not a dealer. Your best bet is to contact dealers not immediately local to your area and hope for a favor getting prints etc.

Check your pirate messages

I have only worked on a couple Savaria chairlifts. Does this have a board with LED's to signal the safeties are met.
Are you getting power, batteries holding charge.( older tk porchlifts only work on charged batteries.)
let us know what you find

You’re not the only one needing a parts list

I have a ton of garaventa stuff, parts catalogs, maintenance manuals, schematics, owners manuals, safety/recall bulletins... Basically everything.

Private message me and ill hook ya up