I'm sorry...I didn't type what I was thinking. There were some other Cabela's pistols that were nickel plated, and I was wondering if the plating was stripped off if it would leave an engraved revolver in the white.
Your pistols are sharp! Which conversion cylinder are those? I was looking on the vti site, and they didn't show a steel backstrap or triggerguard for Piettas. I was wanting to switch to steel to have more of a London looking revolver.
The Pietta 1861 Navies have steel BS/TG and are the same as the '51s.
AFT5211 Pietta Steel Backstrap Finished (1861 - Small) US$65.00
I dont see the steel TG listed, you may have to call.
Taylors lists the steel triggerguard at AFT5221 1860 Army Steel/1861 Navy Steel Triggerguard Steel Finished CAS36 $73.00
Another way to go would be the BS/TG from a GWII. I put the Steel BS & TG with the white one piece grips from a GWII on a .36 cal 1851 US Marshall model that really spiffed it up.