67-69 Barracuda Dash for a 71 Duster?

Ok, so short of finding a 71 Rally dash frame. My plan is to use a 67 Barracuda dash frame & modify it for a 71 since the cutouts for the radios match up. I planned on using a piece from the left side of the collar on a donor 69 frame & weld it to cover the hole for the ignition. Then spot weld any extra holes & using my glove box door from my 71 standard dash.

Am I better off using the 69 frame and graft the radio area from the 67?
Would the glove box area on a 67 or 69 frame need any modifications for a 71 door to operate?
From reading other posts cutting the 71 standard dash is said to be "NOT the best option".

AM I overlooking any other mods? Any input or help would be GREATLY appreciated!

Mike D
P.S. Anyone have a 71 frame....LOL? If so pm me.