Car remodeling, how much?

So I made the decisions to keep one car through out my entire life, right now Im 19 and half a year back I got my mom's gold 2003 Honda Accord LX. My plan is to never trade it in, but continue upgrading the car as I rise through the ranks, this way I'll end up with a luxury car before Im 40 for a fraction of the price. I recently finished the sound system and Im about to move onto repainting it and totally redoing the interior. How much would it cost to get a dark wine red finish outside and redo all the inside to get tan leather upholstery?