Yeah, probably better off doing a re-paint. But thanks for doing the research!
That should be the last option IMO - if the original paint is OK and just yellow then suppose it's up to the owner if they can live with that.
Repainting a cab is a MASSIVE job - I'm working on my third one now. It's a fun job, actually I enjoy it more than any part of the restoration. Couln't even ballpark the amount of hours it takes....
40? 50?
Results with patience is well worth the effort though
If it was me I would probably live with the yellowed cabinet. But in this case he is going to have to do touch-ups as the bare cabinet is showing through now.
I don't know how touching this cabinet up now will go; maybe it will come out OK? But if you are going to have to do that much work then you might as well do a repaint anyway.