Hey mate, I just realised you're not running a girdle. Did you consider it? David Blais (owner of IE) added me on FB today and I had a chat about the spec for a 500hp build and he mentioned the girdle. He said the billet main caps are for pretty serious builds so might be a bit much but they do mean a bit less machining to fit the girdle. I'm thinking I'll get one for my build but leave the main caps standard.
I finally got some specs for mine out of the guy doing the build:
+ 1mm Ferrea exhaust/inlet valves
Ferrea spring + retainer kit
JE 83mm pistons
TFSI crank + oil pump
IE rifle drilled rods
IE inlet
Wavetrac diff
...and I'll be ordering an IE girdle, forge baffled sump, Hemi TB, IE rail, timing belt gear + dowel pins, manual tensioner and the fluidampr like you. Not cheap eh? Not sure what else to get?