Agreed fuel rails are not hard if you have done them, and agreed it would be intimidating if you hadnt done them before, and agreed for a premium priced kit you would expect to just bolt it on - we aint HKS!

We are going to have a turn key system too, but I for one would like to accomodate the tinkerers too
EGR for us on our trucks is a 'dont care' but we also realise that for a lot of people retaining it is important so it wont be forgotten, I imagine as an 'include' option
Fuel rails will be included, they are not in that pic because *cough* we havent received them yet......
We are working on cracking the ECU, have got to 'handshake' stage but havent got access to the lookup tables yet....
That may not help you in the US as our ECU, while still a Delco is different to yours.