Here is a link to the F10 M5 RKP splitters. I set the estimate slightly higher on the X5M/X6M splitters just to be safe. I'm confident they will come I around the F10 M5 pricing ($1095 and made in the US).
http://f10.m5post.com/forums/showthread.php?t=923666
http://f10.m5post.com/forums/showpos...3&postcount=27