I don't know about paining the inside. I am just going to take the time and the little bit of money and change out what I can in the interior from some other celi that I find with a decent interior (the junkyard near me sells most of the interior paneling for about 2.50 a foot or yard, dpending on who you are dealing with).
Did the celica ever come in a dark or light gray?
I seriously want to paint my car, but I dont want to drive around a silver or gray car with a light blue interior

that drives the chicks away
My whole interior is blue!!! no other colors to break it up.