Wanted: Foba Roof Track Trolleys / Carriages

[JB]

Hi

Has anybody out there got a couple (2) Foba cross trolleys for sale? I need the ROTAO type (similar to Bowens / IFF, but not the same!). Just to clarify the trolley will be used to support one rail below two rails above. If anyone can help please let me know. New or secondhand. I'm based in the UK, but if no local ones I'll consider any outside the UK.

Cheers

Jason