Haha thanks, the diagram skills are to make up for my lack of verbal explanation skills.
I'll give it a shot this weekend if I can find time. I think I will indeed avoid the fill cap because I don't know how brittle the cap material is. I'll just have to put anti-seize or something on the scews to make it easier to take them out. Being in the rust belt, everything that can possibly seize, does.
This design was mostly for the purpose of recirculating the oil instead of having it drip out. which reminds me, I'll also need to plug up the holes at the bottom of the cup.