I have a 6" mirror which is in polishing stage. I think it's about f/8 or so but, I don't remember exactly. Some CeO stuck on surface but this will polish right off. I will include a dental stone base which you can use for making your pitch lap. I can include some CeO if needed. $50 shipped
Also have the following pitch:
1kg Gugolz 64 $5 + ship.
950 g Gugolz 91 $5 + ship.
Everything above for $55 shipped to your door.
I can send a pic.