My idea for a brushless LSP

[crazyjr]

I have a spare LSP Pro-R and plan to convert to brushless. I have talked my plan over with coolhand_country and he thinks it would be a cool setup. My plan it for using what i have available thats just sitting, I have ordered the LSP motorplate, kyosho gear for the center diff and i'll think of something for the battery box. Here's what i have for it already; LSP pro-r, 9920 BK Warrior esc, MGM 16024 esc, 12XL wanderer motor and 2 and 3s lipo's. With the 12 XL I plan to run 6s lipo's because of the lower kv of the motor (6s should put it around 30,000rpms at 1390kv), gearing it at 15/46 should put it around 37MPH (BrianG's calculator). Will this be a good setup? Which esc would you go with? the 9920 or the mgm 16024?
thanks for you're opinions