That's a tall request (no pun intended) on that sparse of information. In general terms, though, it sounds like your wife has a very long legs/short torso thing going there that will make sizing even trickier. For a 32" inseam, yeah, I can see where the shop may suggest a large; but cockpit length will likely be oversize for her - - and so long that it can't be compensated for with a shorter stem, etc. It's my guess (only a guess mind you) that you will end up with a medium and maybe a high-quality, long seatpost that can withstand minimum-insertion depth.