Ok seeing I'm not the kind of guy that asks something and then disappears off the earth :D Here's a small update.
So the Gotoh bridge I ordered finally arrived this week and this weekend I decided to modify the guitar. Tim's still making me a pickup so I have to wait for that to arrive before I can mount the bridge and give it a try. Here's a few pictures of my progress so far.
Here's the original pickup removed and the Gotoh bridge mounted.

This is the cavity modified to fit a humbucker. I also modified the pickguard to fit and in this picture it still has some rough edges but that's been smoothed out now as well.

And this is the cavity again but this time I added a white sealer/primer to protect the wood.

Tim recommended a Holy diver for this guitar so I've ordered a chrome covered one to go with the rest of the chrome hardware. Can't wait for it to arrive. :lol: