I have to agree with s/st 3040, these do seem to be taking a while. I dont know how you can advertise and take deposits on something that is not readily available.
Seems like maybe the xr blocks to suit the w series or 59 deg heads should have been cast first to iron out the bugs and get a few runs on the board with the mopar public. There is probably more people waiting for those style than the one to suit the p7?