not sure there is room without modifying the frame by grinding or cutting on it to fit the Surge adapter
3. You can replace the Saw with a file from the Wave. That is a direct drop-in without any modification. I have done it to my "Urban Signal" It is a great swap. I don't own a Rev, so I cannot comment on it's file suitability. I include some pics of the file mod I did.
I like the mod! I think I'll try that first, then wait for a used Signal to pop up on EvilBay . If I can get the Surge adapter to fit I'll post pics.
The surge exchanger CAN be put into the saw slot without modifying the frame, I've seen it on the Leatherman Mod group on facebook.