You are lucky to have such a friend lemur, and although buying new parts is a potential solution, new OSSA specific parts simply cannot be found anywhere that I've searched to date. If you have a source, please share.
On the flip-side, you live in the USA and your political leader has pretty much forced isolation upon you. Not my business of course, but that's obviously going to affect how you find your solutions. Fortunately, I don't have to deal with that, and the rest of the world is a big place... which has yet to provide what I need! Some patience and further enquiries needed, methinks.
Thanks for your input.
Cheers... Paul