The repairs have been done and final clear down. I'm hoping to not have to do any more coats.
I can't say I'm 100% happy with the touchups. Its far from a professional job but I'll see once its reassembled and see how I go. The playfield (once 2k set and cured) will be much more playable from what it was and will do the job.
I was hoping if it turned out great to not have to buy a new playfield, but I think I'll get one anyway and keep in storage for a bit. Will post more photos soon.
At least now I know, if I had to reclear a playfield I'd have the confidence to do it. My art skills (ie touchups) still have a long way to go!