Looking good!
Couple of thoughts...
If you are wanting to add Cliffy's protectors now would be a great time to do so. They aren't hard to add after the fact but you have everything off the play field so makes it super easy.
You might want to consider adding some re-enforcing welds to the slot machine scoop, specifically on the right/ shooter lane side. Again if you have it off playfield much easier to do. They make a re-enforced mantis scoop but some report it being just a touch bigger and thus giving an inconsistent return to the flipper. General guidance is it's better to use stock scoop/ repair stock scoop. I welded my scoop myself with a basic MIG welder and stainless wire but any welding shop should be able to pop a few extra beads on for $20 or less. It's less than 5 min of work.