Im in the same boat, putting an ls7 in next week (the shop is). Their guy wants 900 for the whole kits but eastcoastperformance is closer to 700 and then there is always the ebay vendors. I dont want to piece anything together though since you arent the first person to run into problems. My shop does vettes and mustangs but I think this is the first v1 they have done so we'll see how it goes.