I'm similar also. 5'8" and 34 inch inseam. I'd never measured it before but my wingspan is 70 inches or 5'10"

I ride a trek 58cm. I've replaced the 110mm stem with a 90mm stem.

I've been told by some the the bike is too big, they say that I'm stretched out too far, but I'm pretty comfortable.

I do acknowledge that I probably could have been fitted on a 56cm and been happy wtih that too. But I do not think that I could have been fit on a WSD. I think that I would have been scrunched up.