I still want this setup for some reason....
That is one crazy collection of stuff there.
As for the original question, I think maybe it could look pretty good. You'd have to figure out what to do with the logo. It would be easy to mask, but those goofy Halloween colors won't match as well.
And know, I don't think its blasphemous. The TG-16 is the easiest to find, least desired, least valuable, cheapest PCE variant there is. The world won't miss it.
Separate the case, scrub the hell out of it with soap and water, soak it in something like Westley's Bleche White. Prime with Tamiya Fine Primer W, paint with a satin white from Krylon or whoever.