Chowmif16 - have you found a holster for your open top yet? If not, do you plan to? So far I have had all mine custom made, but I'm having a hard time dealing with the cost of yet another custom pair. I was disappointed that the neither ones for my SAAs nor for my Alchemistas will fit the '72s. I'm not worried at all about bluing preservation on these two, because the bluing is gone and used-looking is better for me.
Anyhow, if you find a holster that is a good fit and doesn't cost a fortune, I'd like to know.