Stoneybrook and Marathon are villa models that are still being built so you can see their floor plans and data sheets at The Villages new homes page.
Lyle Gant (great MLS broker who advertises on TOTV) has a cross-referenced list of old and new model names at
http://www.lylesellsfla.com.z57previ...a21a0eafaf.pdf
He has lots of other useful information on his website,
http://www.lylesellsfla.com.z57preview.com/index.shtml