I really like your creativity and the idea. But ......and this is just my personal opinion, that console looks too modern for a 66 model car. It should be more rounded. But whatever way you do it, I'm sure it'll be nice.
I am definately going to make some changes after seeing one done by a guy on YouTube, but honestly the overalll shape is very similar to the original, which uses a combination of curves that intersect at sharp angles