Vintage Synth Repair

Hi guys, I just bought a few Korg Polysix rubber contact strips on eBay - they arrived today but three out of the four I bought are the wrong ones. I bought the seven way ones and two of those mounting lugs are in the wrong places on three of them.

Waiting to hear back from the seller - meanwhile would anyone here know where I can source some (preferably) new ones...? I need three of the six way ones and possibly one seven way (depending on what the seller advises me to do...)

Cheers,
Tom