I'm also surprised at the recommendation of a BXA for that size lathe.
I have a 13" Clausing Colchester, that came with a BXA, and it seemed always small to me - I finally found a CXA Aloris for it, at a price so cheap I couldn't refuse, and that one is perfect.
The BXA got moved to my 10" Sheldon, and seems perfect for that lathe.