I recently purschased a polished Noss with two dome sets & acorn nuts $145 shipped.
Before that I ran into a Pro Design $100, head only.
Both have interchangable domes with each other but Pro Design requires you change to longer cylinder studs. I'd rather Noss for that reason.. Both DLNoss & FAST give the BHQ discount the same Noss head & think it's $225 shipped for the head, seals & choice of dome size.