Reply to Lost Poticap/Replacement Caps

Hi there,
im a DJ and a proud owner of the vci 100 from germany.
the last gig i was playing at, ive lost one of the poticaps.
now im searchin for a original cap or replacement caps.
but no shop in germany offers caps for the vci 100.
they are the same as the caps in the vcm 100, i believe.

it would be very nice if some of you can tell me where i can buy caps that fit!?
or maybe someone has got a original cap for me?

thanks and greets from germany