Ah I misunderstood the rock, thanks for clarifying! Overall your setup sounds and looks good! Maybe just find a way to secure the probes so they can't move around and read wrong temperatures (if those probes are for the thermostat - if it's for a thermometer that's okay).
I've also seen BP guides suggesting temperatures of 95F but from BP keepers I've always heard to go no higher than 92F. From personal experience, I've also found that my BP will stop using his warm hide if the temperature goes up to 92/93F. He would sometimes tolerate 92F as a baby, but now as an adult he won't go to the warm hide if it's warmer than 90F.