mtech rear

So I work at a shop, and a guy wants me to remove his rear bumper off his 2008 e92, and mount on a new m-tech bumper, and I honestly dont know a number to give him for price. Any idea what a fair price would be to charge him?

Finally Dropped My x3 :nyah: I wanna do the trunk next and i have some other ideas :hmm:

Ok so my body shop is installing a new mtech II kit but when they were going to put the rear they called me and said it doesnt match up. They wanted to aske me what they should do or if I know of any new brackets i can put in place of the stock ones to make the bumper fit properly. (Attached are...