Bin the dump valve and that hideous aerial on the roof. Assess the situation more once you strip it down m8, RS Turbo bodykits are good at hiding rot and rust

Check the sunroof too for rust
Most of the blue bit's can be replaced with chrome / standard items off Ebay, or spray them yourself
I personally prefer the '90 spec interior, rear spoiler, and front bumper but obviously that's down to you once you've got your hands dirty
Good luck with it m8