Thanks folks. Mainly I was checking into service from the 3.
One I spoke with on the phone earlier today. Unfortunately he eliminated himself during the conversation!
That leaves me 2 options, but one doesn't seem to have grips for the model I have (1858 Remington "new army") so it looks like I'm going with "Tombstone" as my choice.
From all the information I can find grip shapes vary enormously, even within a given model & brand, so I was expecting the template issue.
Nothing against western wildlife & wonders I just can't find a grip listed from them for the pistol I have.