The kit includes the manifold, intercooler core, hoses, thermostat housing, brackets, tensioner, 8-rib secondary belt drive system and all mounting hardware.
Considering the intercooler core alone would run you close to $1,000 to have one built, or buy it from Ford, I'd say this is a hell of a deal!?!
What you would need to add is fuel system components, front mount heat exchanger, coolant pump and tank, inlet tube, hoses belts, etc, and computer tuning.
Combine that with the cost of a used Eatom M112 blower and inlet combination from Ebay and you could still put yourself a pretty nice kit together for around $3,500-$3,800.....which is still much, much cheaper than any other Positive Displacement set up on the market.
As far as the Eaton supercharger sucking....well, I guess if you call 500hp/500tq capable "sucking", but if I recal you're not making much more power with your Vortech set up? And how much money have you got sunk into it at this point?