you're welcome my friend.
love the '72 and those Rx-5 MAGs. cool. thanks for sharing the pics of your wagon on here
i have been thinking to put mine on some, right from the start but went with longchamps for now 
you've the early 1800 bonnet with the centre scoop. the later ones had one large and two tiny scoops, one of them a mock scoop while the other to give room to the carb
what exactly you are working on, on this '72. it looks pretty solid to me