Since I have not played lots of PRSi, I will have to go on what I've read around here.
My choices would be a hollowbody - either the HB Spruce I have now, or a SC HB II - not sure if the maple top/back would make it sound too much away from what the Spruce offers, since the other guitar would be either:
P24 Trem for that classic Cu24 sound (with Piezo!), or something along the lines of a SAS, Paul's Guitar, or maybe even a 305 (!) to get far away from the Cu24 sound.
And yeah, I assume I have electricity and an amp, otherwise an Angelus and another acoustic (maybe the Lifeson thinline?), at least one a cutaway.
Interesting thread...