my slant buildup

Well my whole oil pump body fits in the new ultrasonic but I did have to flip it and run it a 2nd time to get it all, it looks like a new casting. No more brown discoloration even any more.
I have an OLD Melling rebuild kit but the oring (cover gasket) and mount gasket are petrified. I have a 10 pack of new mount gaskets and need the o ring, a couple buck part from fel pro.
My original oil pump gear didn't survive the removal very well, the rebuild kit has a new one, from back then with the woodruff key style. I also have 2 NOS drive gears I found on feebay last summer.the kit I have is from the early 70s at least maybe older. The woodruff key is missing, is it really needed since that fear is press fit anyway?
I also have a new but old mcquay norris one from the early 80s here, cast iron version but still 6 bolts, some of the newer ones only use 5.
I think that one is a reboxed sealed power pump by the tag it has. There is 1 gnarly casting edge I will have to clean up on that one if I decide to use that one and not rebuild the original one.
Got my 2nd set of new mains today, they look much better than the 1st set I bought. These have some black tarnish on them but it rubs right off. Not peeled off like the 1st set. Came in a TRW box, just like the 1st ones did but/ we're packaged different. The 1st set said made in england the 2nd wet was USA, I'm surprised the english ones were as ugly as they were, I've never seen a set of engine bearings packed so we'll before. Both are old stock, it's been years since I have seen TRW brand parts, the old logo and colors. The peeled original set I got is probably from being on a shelf collecting dust for so long, I'd bet they are 40+ years old even though they are new.