Old thread I know. But the Litespeed Watia in XS fits my wife who is about 5'. Reach is fine and the standover is OK on the 700c wheels, but I put 650B wheels with 35mm tires on them to give her another couple of cm of standover. With 165mm crank arms, pedal clearance isn't an issue at all for her.
FWIW, I have a Lynskey GR300 and they also make an XS size and the geometry is almost exactly the same.
Both of those frames specify that 700C or 650B wheels can be used.
Check out the geometry and measurements of those frames and you can then compare to any other brand and, if it's similar, I believe it would fit fine. Especially if there's a 650B option.