I have:
3 of #8304, 35mm, plus some off brand 35mm labeled "104B" (it's silver instead of the anodized black)
1 off-brand 6x6 labeled "110B" (also silver)
1 #8305, mounted 2x2 slide carrier
2 of #8334, 6x4.5
1 #8328, 6x7
1 #8336, looks to be 16mm?
1 #8301, looks to be 110?
And one of the older style 35mm NegaTrans carriers that had a new belt installed a couple of years ago.

PM me if you're interested in any of those!

Duncan