I'm following your build closely. Sorry about the paint problems, but I'd agree with
@UNBROKEN it didn't look kosher from the first. Hopefully they'll get it right. But....since you ask for "ideas/suggestions", in terms of the engine mods, I think I'd look at that last. The trick is to achieve the HP you want while keeping the torque numbers reasonable. And especially to avoid high torque numbers at low RPMs. I've always been curious about upping the rpms on the stock engine. The cams have enough lift (don't have duration numbers) and there's no other mechanical reason this engine won't run to over 7k rpm unless the valve springs aren't up to the job.
The recent information (which may not be reliable) shows dyno charts from Kruppa's ride over 7k rpm on the stock engine. That opens up a lot of room before I'd look at the 10R80 option. For example, if you could sustain the cylinder pressure to produce 500 lb/ft of torque, at 6K we're talking 571 crank HP on gas (around 510 WHP). At 7k, that would net over 667 crank HP (around 605 WHP). Those numbers are less than other dynos I've seen showing that much torque through the 10R60 even though it's only rated around 442 lb/ft. Remember average cylinder pressure is torque- the higher RPM we can sustain that torque the more HP.
The only way to achieve it of course is with higher flowing compressors and turbines. I'm more of a street/sleeper type of person. I'm not drag racing from every stoplight and could care less about trying to mix up blends of ethanol, so for me, I'm looking at 93 (10-15% ethanol) for a daily driver. If you're looking to for that type of performance, you could easily see 550 WHP (~620 crank) on gas with just the Pure 700 turbos and the Fen Fab down-pipes. In which case you wouldn't need the fuel pump, injectors, or all the transmission upgrades.
Note to self, Esssssssssss Teeeeeeeeee owners bought they're Explorers because of the black trim. Performance is secondary. Got it, thanks for the clarification! 
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