dan - if i get time i will do an overlay on the dyno comparing 7psi to 14psi on your car.. so you can see what your missing out on
you have a spare box.. no excuses
remember keep a check on your nuts/bolts levels for first few weeks (manifold and exhaust nuts work their way loose during the early running as things heat up and flex etc)
re intercooler, that was highest it could sit with minor structural cutting of the chassis. if you like we can cut away some of the chassis which will enable us to get the boost pipes higher, and then lift the intercooler up an inch or so? perhaps make this a plan for a later date.