I ride a 42cm LHT also, I'm 5'2". The Surly Pacer road bike frame in 42cm has the same fit as the 42cm LHT, 50cm eTT. I rode a Pacer for several years. It's a sport touring road bike and takes 25mm tires with fenders.

I think the 42cm Crosscheck is also the same fit, maybe a bit taller standover. The CC would be a great bike for light touring and rough roads. The CC takes tires up to 45mm.