Let me see if I got this right. I supply the engine/transmission. You supply the conversion kit. Is there ANYTHING else needed to complete this v8 swap?
The DIY kit is all the non- parts store parts. You will be making several trips to the parts store. For example, coolant, oil, PB blaster, etc is not included in the kit (and It should not be included as it is easily available and everyone has their own favorite) However the essential stuff that isnt super widely availible, Ie ECU that is wired to fit the kappa and LSX engine, radiator that is modified for the kappa, etc.
Also any modification/ extra parts you need from your junkyard LS7 would be needed to be ordered as well. They junkyard/reseller may say its all there... but i have bought a few motors and I have yet to get one that is 100% complete.
It is great that they sell the conversion kit though. this kit + a few trips to you local parts store would get you running and ready to tune!