I'm interested to know what is
"reasonably priced" ?
I will take the first step in this dance… As of late options start at ~$200, and as mentioned the Old Model Ruger Dragoon frames ~$350.
Ronnie Wells Grip Frames are ~350 + shipping, very nice, accurate, high quality well fitting, however they do take some experience/ skill to get to final fit & finish.
Can one find brass grip frames for ~$100 +/-,,, YES, there out there, it's like bird hunting, Weather, Hatch, Feed, Predators, etc,,, and then the Season.
There out there for a lot of reasons, but I usually find there available because the ability/ skill to fit & finish was more than what was expected and the project was abandoned.
A new model dragoon that was purchased off EBay $100.
Fit & finished to a 30 Carbine Blackhawk.
Ronnie Wells Hunter Super, fit & finished to a 50th Anniversary flattop.
Same Anniversary flattop with its 50 year old sister sporting a Qualite OM frame, sporting Patrick Grasshorn Vintage Elk grips.
Ronnie Wells, Keith #5, fitted, grips, & finished.
NM Single Seven 327M.
(Note: front sight was in the white when picture was taken.)
What Grips? This Question is better answered as to
what you would like and your Budget, Ranging $30-$700.
There are a lot of nice custom options out there in the ~$200 range +/-.
IMO, It's not about the $$ spent, it's more about what YOU want on your gun.
Good Luck in you persuit.