Phase 1 door cards into phase 3?

[C.A.R.]

Obviously it's doable, but is it a lot of hassle?

The door pins look different, the window switches / looks are different and so on. Is there a guide somewhere?

I also understand you need to drill off the hanging brackets for the door panels and stick some phase 1 versions on. This sounds like it would be hassle.

If it's more trouble than it's worth then forget it, but I much prefer the design of them.