If you want the usual PRS switching, or other tricks, you can use an Oak Grigsby Super Switch. The narrow version (found it in UK:
https://sixstringsupplies.co.uk/products/oak-grigsby-super-switch) should fit, since the PRS unit is basically a stripped down version of this. I guess the regular wide super switch will work, but not fully confident on that.
You can also use a Schaller Megaswitch M to get the same switching options as a Super Switch. If you like the older rotary selections, you can use a Megaswitch P for ease of wiring.
You could also use a CRL three way blade and a push/pull for coil tap.