Bessey k body revo clamps

[Avery]

I have 4 bessey revo, the ones where both heads move .2 are 1500mm long ( both heads move) and 2 are 1250 long (top head static). That's the clamping size. I also have a million other clamps. I never use these 4 and would much prefer 800 or 1000 or even 600mm. Bessey or similar quality. But not the thin uniclamp I have loads of those.
Any one want to do a swap? Or want to buy these? Obviously postage is a pain so collect from Brighton area.