My work in progress, need some help! w/pics!

[white4fiddy]

New member here. finished another project that i had going, and now it's onto this unfinished project. this is what i have.

mmmv2
spektrum dx2
tekno conversion
tranny w/single only conversion, wide ratio, locked in second gear
333oz hitech servo

that's it for the big stuff.

so basically this is what i need help with.

1. which motor.
2. which batteries.
3. should i upgrade to spektrums new dx3s.
4. what gear setup should i be using? pinon, spur, whatever.
5. anything other info, tips, things i should get.

im a basher, i just wanna fly around a parking lot at nitro speed for 20 minutes or so per battery. i want something efficient, and not too crazy.

heres the pics: