I wouldn't even want to attempt to paint my interior. Luckily my interior is already dark charcoal so no need, but if it was tan i'd just live with it or peice together a DC interior and install that instead of painting it.
There is a LOT of work involved in painting interiors. You need to take it out, take it apart, clearn and prep every peice and then paint. Then you reinstall and try to get it squeak free.