Not sure if you know this or not but LBT now has Mass Grey items available on their site. There's only a handful of items available but its something that I did not know of until now. So just a heads up to anyone else who doesn't know already, like the title says LBT is now offering items in Mass Grey on their website.
I got a 6094 pate carrier kit in MAS gray when they offered it. Last time I talked to them MAS Gray was being discontinued except for special orders. They have a 50% off MAS Gray sale for anything left. I hope that is wrong, I love MAS Gray.