Unless those gunsmiths are in your home state, I doubt the difference in cost would make it worth it.
Pretty sure Freedom charges 199 for shortened barrel, which is, essentially, the cost for cutting the barrel, moving the sight housing and attaching the proper front blade.
Im sure those other big names are reputable based on what I've seen and what others report, just make sure you don't choose a different gunsmith local to you that isn't equipped to do the job, but may convince you otherwise
In the past I had FA shorten, and crown, a barrel and it looked as one would expect. Of course when price of shipping was added the cost stung
Regarding the rounding the grip frame, FA does that. The other posters contouring of the grip frame, presumably, was performed to better match his hand than the original. If you have average sized hands, I wouldn't think there'd be a reason to change it, apart from what appears to be a sexier contour.
It's just my opinion, but I think you should let FA do the work (if you're happy with their "round butt" option). They've been producing the same gun with the same high level of craftsmanship for many years without compromising quality. For that reason alone, supporting their small business is key if you want to enjoy products from them in the future.