We've had several customers order bodies with only the Tunomatic bridge drilled and used that in conjunction with a Bigsby system. There are different Bigsby models and apparently one, or more, match our Tuno bridge route. If you want to do this on a thinline, Warmoth can leave the cavity behind the bridge solid. This would allow you to mount the Bigsby.
So I went to Bigsby's website...I didn't know how they went on, but you should be able to find a model for pretty much any guitar. They have 2 or 3 basic designs, and then arctop or flat derivations of each of them. Looks pretty cool.