That's not a bad price, GM used the part# CPSLSA4L85E as a connect and cruise for Sema but to buy it from GM we had to order the seperate part #'s, I just looked them up in my 2013 Performance Parts Book and our cost in Canada is higher than their selling price, it would be interesting to price the individual pieces from a Chey Performance Dealer Down South.
It's the way of the Future for Hot Rods etc. It'll be this or E-Rod Systems