That is nice work! It's good that there are plenty of Retinas out there, quality cameras that don't cost too much. Many are in good working condition, some need a little help, and then some for spare parts. And there are aftermarket cocking racks for the b/B/c/C cameras from Micro-Tools. And for some models there's custom leather/ette available.
I don't have a Retina to service at the moment, but when I do I will probably let Chris do a complete CLA. But I have a Rolleicord II that needs a new mirror and have the viewing lens focus adjusted. That I can do myself.