This is my mock up of the LHG Solo tent.
As expected there is room to spare around my 72'x20' mat, a 77'x25' will fit in.
The vestibule seems a bit larger than I imagined, so a pair of shoes and a pack (sandwiched between the two walls) should fit.
So definitely one to look at for the 6'3" plus brigade.
Still at nearly 38'sq total ,it does have a pretty large footprint for a solo tent.
As Miguel has pointed out, however, there are no guylines , so that is a consideration when looking at the footprint.
BTW, this is the LightHeart version, not the Nomad
Sorry about the terrible shot...