Wooohoo!!! Congratulations...
The Uberti CA047 model is my favorite cowboy pistol. I have more than I wish to admit. I originally got a pair because I thought I might want to convert them and I didn't want the stock cuts. Then I started shooting them and realized the lack of the 4th screw was also nice, didn't hit my finger or thumb and less to scratch the holsters.
The only 4 screw styles I have now with the recoil shield cuts are two original Colt's and a pair of those short barreled Piettas that Cabelas was selling. I've gotten so used to the model you have that the other ones almost look strange to me. Which is odd because the 4 screw models with recoil shield cuts was the most common original configuration. You also see 3 screw models with shield cuts and 4 screw models without shield cuts. It's not just the Italians who have a mixed bag of models with crazy mixes of features, Colt's did it too from 1860 until 1873.
I have bought a couple of pair from Texas Jack's and another pair from Buffalo Arms. Their prices used to be about the same, lately Buffalo Arms prices are a bit more. Every once in a while Texas Jack's will have a sale on their percussion revolver inventory and they will be $10 to $20 off.
Oh, and I have never seen an original Colt's 1860 with an Army size Brass BACK STRAP. I have seen a bunch of them built in 1860 with brass NAVY size grips, but never the large grip. I'm sure they are out there I just have never seen one. If anyone has a picture or can link to one I would appreciate it. I would like one as an example.
Here is a 4 screw with stock cuts and silver plated trigger guard like you want to do:
Regrds,
Mako