Yesterday I sent a few gaskets to RGT at the request of Jennifer Carter who works there. Thanks to the work of Dearborn Ford (Jeff) on the oil pan gasket, it seems that RGT is more than willing to tool up to run valve cover gaskets as well. I also put a valley pan gasket in the box I shipped, and in a follow up converation, Jennifer said that they would be willing to make that gasket as well. They are planning to make prototypes and ship them to me - will certainly let you know how all this goes.
Good to see more interest in Y Block parts and gaskets these days.
Daniel JessupLancaster, California
aka "The Hot Rod Reverend" 
check out the 1955 Ford Fairlane build at www.hotrodreverend.com