Generally using tubeless tyres with tubes is sub-optimal because they are harder to get on and off, and your chances of nicking the tube when you put them back on is much higher (I had a long walk in February as a result of this)
Best plan would be to buy a GP5000 tubeless tyre and see if you can mount it on your rims. If you can't, there's no point thinking about using them.
I wanted to use GP5000 TL when they came out, but I don't because I did that test. I could mount them on Kinlin XR31s, in my garage with a struggle, but would not fancy my chances by the roadside. I also tried them on Lightbicycle carbon rims and they were clearly going to be as difficult, so I gave up to avoid causing damage. However, I can get them on to an old Ultegra wheelset ok, so I use them on that, but not on my racing wheels.