Fucker rides like a tanks need shop for notch

Hey i just slammed my back end on my mazda and im riding on the bump stops and i want to do a c-nitch only prob is i cant weld i wanted to know how much it would cost for a shop to do it, i can do the bed my self, all i need is you to ut the notch it i would bring it to you with the bed already off and all ready to go, thanks