The cost of what you are describing is going to somewhat expensive, to the point that it may cost less to get a Florida, California, Texas, New Mexico, or Arizona car to replace you car. If the interior of your car is nice, you could just install it in anothelr car, and make one nice car.
It is going to take hours to cut the quarter sheet metal off of a donor, and longer to attach it to your car. The part is less costly than the installation, and paint. The fenders and wheelhouses are not all that expensive, but finding GOOD ones is more the problem. I sell parts, and can get them, but you are looking at $450 plus shipping, if I remove them. The shipping is in the neighborhood of $300+.