Back from Torino Nice Rally - huge thanks and respect to JamesO

So now I'm in the market to buy a Fargo.
At 5"8ish/174cm I'm right at the top of the Small range and right at the bottom of the Medium range. So trying to work out which one to go for.
Effective top tube wise most of my bikes are more toward the small. But standover and seat tube wise the small looks like it'd be properly small.
Are there owners of a small OR medium Fargo (or any other model of Salsa in Sm/Med) in the Edinburgh area (or in striking distance of the central belt) who wouldn't mind me turning up on their door step and throwing my leg over their bike?
Just to get a sense of reach/standover?
Very happy to bring some beers or such like along in thanks!

Cheers
Luke