67 tunnel in a 65????

I'm going remove the floor shifter from the 65 Barracuda. I'm thinking about installing a 68 A body console. I have the entire tunnel, and I'm thinking about cutting the top off preserving the stock placed brackets and downrod hole. The "strip" should be ! 5 " wide and 2 ft. long. (wider at the shifter downrod hole.

If anyone installed a later console, how did you do it?

Also: going with G6 seats that are 19" wide, the stock Ply's are 22".....so I should have enough room....... I hope.