I have done ultra cheep. I scanned the back glass, filled in the missing bits and then got it printed onto the stuff McDonald's use for their over counter menu signage. About £10 all in.
Give @PeteB of Retro Refurbs shout, he should be able to help you out.
Yep will do for sure on first run - I’ve seen some crazy DPI on backlit medium at very low pricing - so makes sense to go that way...james ,just go into any street sign or print shop, they are normally really helpful giving advise on what they do or direct you to some company local who does I find .theres a sign making shop in most local towns etc
im sure someone on here or the sign company would be able to advise but when I get stickers /decals done they are printed on white sticky film, i sometimes get free offcuts to mask areas that are back lit on the playfield so they don't get too transparent .if cant get this element of the translate sorted you could also get them to sell you some the same size as the translate and cover the rear ,im sure you can get a more professional solution but its a thought