Damn you, I wanted to get the ball rollin before anyone! lol jk.
I'm doing similar plans as well, I think I will fab my own fmic, anything under 30in long will fit, I'm not sure on the height, I think 8 to 10 is the max. And 3in thick is the standard.
I'm at a loss for fuel management systems, I have heard the haltech uses outdated software.
Let me give you some cool tips to save you some money, I got these from KyRacefan, he says the NA rex's use 440cc injectors, they just snap into place in ours. And the fuel pump for the NA rex will fit as well, a great way to save a few bucks.
Since I believe in the aspects of a community, I am sharing this info. Wish more and more people would share!

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I will prolly be going with 8.5:1 compression ratio pistons, hopefully perftworks still has the hook up on the shop. Prolly go through him for the rods as well.
The clutch and flywheel are a no brainer to replace, but it ruins the car as a everyday driver until you practice a lot with the changes.
My biggest fear is the tranny going out on us. I heard the manuals are good for 260whp. That will through a wrench in the mix for sure in the search of 13s(I believe you need about 280 to 300 for a deep 12 low 13 car depending on weight, please correct me if wrong).
Sounds like you may beat me to it though, I'm still working for low wages, but I go the wheels in motion.
Keep us posted, and dont be scared about sharing information with me or other msp owners, it is how the community will grow.
PM or IM me sometime bro, we can shoot the s***.
-Eric