Approximately how much would it cost to repair the side of my car if its been hit? not a dent, but like scratches and small little indents.?

Maybe $1500- $2000. If just scratches, they might buff them out and wax it. The dents might be a challenge. Look into paintless dent removal.

I'd just look on craigslist or a junkyard for the same car that is being parted out , and take whatever parts you need,doors,fenders, etc then repaint the whole car, it might be like 500 to 1000 bucks in all if you got to Maaco for a paint job, detailers are usually more expensive, but it's up to you.

No body can assess that without seeing the car