Well, due to Mr Onzaboymark being a top bloke, I have some numbers for you!
Chainstay: The dropouts are very long, allowing a couple of positions to be used. Mark's got his set at 365mm (which would normally be 362mm with a brand new chain and 18:12 gear ratio), but he says you'd be able to take an extra link out to make the stays 350mm or less, or use smaller sprockets and run them at almost 375mm.
Wheelbase: With Mark's Fall Guys is 1030mm, however these usually shave 15mm or so off due to their geometry, so with a normal fork it would be 1045mm.
BB Height is 330mm with Mark's Fall Guys (which are pretty long). A T-Pro with T-Pro forks is 315mm. So I would estimate the normal BB height to be 325mm/+60.
The Reach of the frame, from the centre of the BB shell to the centre top of the head tube is 650mm. This is 50mm more than a T-Pro, offering loads of room in the cockpit!
Mark's also gonna grab a few pictures later on :-
Cheers,
Adam