bk6045

Hello, i am new to the BMW's. I have just bought my son a 1991 525i. We have a lot of work to do to it together but i have a few questions for you experienced BMW owners. The car is from NC and has set for about a year. It does run but it runs rough. The interior is terrible. The door panels look like they melted in the sun. Does anyone out there know where i can get new one's. I have looked on e-bay ect. and no luck. Also does this car have any common problems that i should look for? It has 125,000 on it. Thanks for any responses.