That makes a ton of sense Hugsplox! Get everything dialed in, let him digest over the weekend and make sure he's got a good meal in him, and then transfer him.
It might take a little while for him to adjust to the new environment, so I would treat it like quarantine in the sense that you should leave him alone until he's taken 3 consecutive meals in his new tank.
Also, Most of my hot side is about 86-88F for my BP. That's plenty to digest. With the RHP, there may be areas that are a little warmer and a little cooler. Remember to check all around the hot side with a temp gun to see what the variance is. In my tank, it can be 86F-88F average, but have a spot where it is 85F and another that is 90F. That's okay.
When I check temps in my tanks with the IR temp gun, I hit 4-6 areas on the hot side (takes an extra 4 seconds), one or two spots in the middle, and two spots on the cool side.