Have you considered that maybe the compressor wheel might NOT be the problem?
The GT RS sucked, the 2540 sucked, that 2535 (69 mm exducer) will suck also. They all have the same bloody turbines.
Maybe you should supercharge it. You don’t seem to give any thought to the other side of the turbocharger which seems to be a common idea around here. You can throw as much shiny compressor at it as you want. ?.
Honestly, bin this twin turbo junk. Cut your losses and move on! T4 Twin scroll GTX 3582/1.01 OR EFR 8374/1.05. It will punch the hell out of all this trash you’re trying.