Yes.
You are in the US, so getting it done should be easy - unlike trying to ship any firearm from "Elsewhere". FA needs your complete gun, grips are also specially fitted to the frame.
The price list for the retrofit options are on the Freedom Arms website.
Oh - and you need to be concerned as once you have one you probably will think all your other singel actions are inaccurrate, oh and you'll want another one.... and another.
I would check the usual stuff that I would on any secondhand revolver before buying it. But the FA's are great and strong, but then nothing is indestructible to a careless user.
Wim