BAG AND BD $$$$$$$$

I JUST GOT A QUOTE FROM THIS SHOP UP IN NJ TO BAG AND BD A S-10 ON 20'S WITH 2 viair 450s, 4 half inch smc, 4 3/8 smc valves, 12 gallon, 175 psi switch, half inch lines and fittings, 4 2600lb firestones, and a 10 switch box.. for about $6,200 good deal or no.. i know the shop does great work but just wondering how that sounds...