I agree that the paper gaskets are pretty thin, but the original VW gaskets were equally thin, too. My current pump is a Berg and it doesn’t leak, but I would try re-gasketing the cover on yours as a first step. Once the rear tin and pulley is out of the way the pump is easy to access. See if the Bugcity.com guys have a German or Brazilian gasket, too. If you decide to swap the pump, I have a pump puller tool you can borrow. Goop up the gasket with Permatex blue or black and put it together - that should do it.
Come to think of it. If you’re going to the trouble of doing the cover gasket, you might as well pull the pump and do both body and cover gaskets to be sure. Let me know if you want to borrow my pump puller.
And are you sure it’s the pump leaking? These engines are notorious for leaking behind the crankshaft pulley where there is no seal and when the oil runs down behind the pulley it looks a lot like the oil pump is leaking. Mine does that all the time.