The 395 HP is 107k...that makes no sense to me. It's essentially a lariat with some mods. ~50K worth of mods? Why not go with a Tremor? Or buy a Lariat and do your own mods?
I can somewhat understand going with the bigger model, if money doesn't matter and you want the HP. However, you'll probably feel foolish one the R comes out. The R will have the wider stance, better suspension, better frame, better engineering (not Shelby reworking Ford engineering), better tech/interior (maybe), and probably a little cheaper...though maybe not til ADM dies down.