After mucho research this is what I found and thought I'd share. Feel free to correct or add if you'd like.
pic 1 - Early 70 lid, no cutouts for wing or spoiler (SPD for this car is
10/69)
pic 2 - Mid 70 lid, wing cutouts added, est begining mid-October
(SPD for friends car is 02/70 and Govier says needs this lid)
pic 3 - Late 70 lid, AAR spoiler cutouts added, est begining mid- March
pic 4 - Late 70 lid with wing attached
pic 5 - 1971 lid, note different wing cutouts, the 71 wing is different
than the 70 wing.
pic 6 - 1971 lid with wing attached
pic 7 - 1972-1974 lid, not much info on these but guessing they are
all the same.
Maybe this will help someone else's resto. Thanks again for the pics Fisn! It'd be nice if the pics could be archived too. Got 'em on the desktop if someone needs them down the road.