Casio CZ/ VZ/ FZ - Pro Series

Hi, I'm in the process of designing a D.I.Y. Casio RA-500 RAM card 
project, and am sourcing parts. It only just occurred to me that there 
may be a "generic" RAM card that will fit the VZ. Some Korg synths will 
use the Roland RAM cards. So I thought maybe Casio's have a generic 
counterpart. 

The RA-500 is a 256kbit ram card, and uses a 45 pin single row edge 
connector. This is the difficult part of the project to source. Can 
anyone with a Roland 256 or 512 RAM card count the number of pin 
sockets on their card for me? It may increase my options for the 
project, and I also may just find out that there is one from another 
brand that will already fit and work as is.

Also, if anyone out there wants to SELL me a Casio RA-500 card, I'd be 
interested, so I can study it.

Cheers, Graham