Replying to Rossignol Race Plate Binding Choice

So I found a pair of 155cm rossi race skis (the classic gold ones), with FKS 155s on em. Caught a screaming deal on craigslist from a clueless guy.

Anyways I obviously just want the FKS haha, and will sell the skis. Does anyone know what sort of binding fits the plate? Like is it only FKS/pivot drilled or are there holes for PX series too? I will have the skis in hand later to see for myself, just have people asking me already. Also can you swap riser plates? I know nothing about risers.

thanks people