Battlegear Toys do the 1860 and a couple of other manufacturers, but although OK I would be looking for something better and to be sure to get the scale to match the Sideshow Colts. I have a Kaustic Plastik diecast Colt 1851 that may have to suffice to start with. Full Metal Custom may create the 1860 in metal...works of art, but you would probably want to replace the 3 Sideshow Colts too. I am now starting to get a headache and I do not suffer from such ailment. I may dream of Colts the different models and dates this night, heck no I only dream while awake, this may be the real issue. I suppose it is best to try to keep all things simple, create your own figures from parts and you can do whatever you wish, fun too.