It’s hard to say how much I’d charge. It wouldn’t make sense to try and sell them doing it this way since everything was done by hand. I’m going to do a few more to test out some other handle shapes and maybe another lock or two. If I got everything the way I want it I’d consider doing a batch of handles to have ready for people’s donor Mules.
One issue would be that not all Mules are the same, some with metric holes and some with standard. Another issue is that I have full custom designs that I would probably rather spend my time making. This is all just a hobby for me so I tend to just work on whatever I’m having fun with at the moment.