Cartoni Tripod Quick Release plate

Is there a cheaper alternative to a Cartoni Quick Release plate ? Ive found them on B&H for around $100-ish..... didnt realize they were that much.

Heres a link to the plate.....
http://www.bhphotovide​o.com …_Quick_Release_​Plate.html

I can't tell by looking. Are they a proprietary plate or Arca-Swiss. If its proprietary you're probably out of luck. If they're AS compatible then you've got lots of options.

Honestly... I dont know. I dont even know the difference?

They appear to be proprietary. After looking at B&H and seeing that Cartoni heads can go for thousands of dollars I don't think I'd be too upset at having to pay $80 for a plate.

Looks sort of like the Manfrotto 357PL plate used on their 393 gimbal head, but without dimensions, it's hard to be sure. Doesn't look like an Arca-Swiss style plate.

I know $80 is a small price to pay when you have two of these tripods... but every dollar counts now-a-days. So I figured I would ask the pro's here. Thanks for the help guys!