Robert, I love my 790 America but from what you've said in your posts, I would recommend you pay the extra 1000. and get the 865. The bike is a 3 year newer model and with the "normal" mods they are close, but the 865 will have more torque in the lower rpm range.
I'll probably do the 904 kit, but I'm waiting to see what the 08 larger cruiser is like. Unless you're doing the work yourself, you also may find that a big bore mod will cost more than $1000. parts and labor. With the newer bike you would pretty much have what you want right away.
