Anyone with exp in turboing mustang gts?

yeah, he is kind of a douche and just likes the idea of have a turbo mustang but he asked and i figured it wouldnt be to much trouble to ask around i told him it would be around
5k for a good kit but again i have no idea how much he is looking at spending at a shop to get it done. all in all he has the cash and would have no problem dropping money at a shop if something went wrong with the car after the mod.