Seen all of those, also the ones at BGPups
http://www.bg-pups.com/mm90.html
I grabbed a cheap Kalamazoo KG-2 project, it was missing pickups. I would like to restore it, but people keep taking old Kalamazoo hardware, like the Maestro trems and the pickups, and Ebaying the stuff as "Melody Maker" hardware so they can get big bucks for it. You can't find Kalamazoo parts cheap now. I may give up on restoration and just make it a player. Maybe I will get an undrilled pickguard, and route it out to put Strat pickups in it.