Hey, Jordan. Post more I say!
I'm starting a
Faemina full restoration. A little bit different from yours as I'd like to chrome plating all the parts again...
So far I removed the group gasket and boiler top gasket, they were bad boys. You can remove the piston sleeve using the OE method, as I've done, but it's a easy way to damage the little pin holes - a dedicated tool would be the best option. I couldn't remove the glass, so I'll remove the spring and piston first, than the glass. It's so old and dirty that I think I'll have to replace it, but this one is easy and I have a local company that works with all kind of sight glass.
Anyway, I think you should replace all gaskets. OE has them and I doubt Faema has, but let us know about it.
Márcio.