Might be worth it just for the video...
I thought about making a resin cast of my Denix Webley but after seeing your conversion I'm trying my hand at converting an old .357 airsoft I had lying around. I took it apart and gutted it, glued the hammer and trigger and weighted it a bit so it has some heft but no moving parts except the cylinder, which I will probably also glue just to be safe.
Cut off the barrel and made a new one that will have an orange plug and redid the grips to be close enough. I'll post a few pics once it's done.