Revell 67 GTX to Belvedere conversion

[Brutalform]

I’ve been thinking about building the 67 Sox & Martin car. From what I’ve read it was actually a Belvedere RO23. I can order a bench seat from Harts Parts, but besides the door panels, and removing the GTX emblems, what else would I need to perform on this conversion? 

[gtx6970]

Upper body line moulding on belvedere