I agree about your head sugestion, the eddy could at least for sure use a better shaped chamber, they could at least rob the one from there magnum head.

The one thing about the stamped W2 rocker is the guys who run W2 style heads typically run pretty big cams that need really stiff springs and those tend to punch through stamped steel rockers. The stamping process makes a weak area right in the PR cup, to make them strong enough they would need to be very thick and then they would be very heavy and require even stiffer springs and the W2 style valve train is not very stable as is. However, I think it should be easy enough to make a decent set of say $300 aluminum rockers with a bushing where the shaft rides there would be a big market for those .