Motor & Battery Combo for New Track

[Tazz]

I just found out that there is a new off road track being put in (open in 4-6 weeks) about 20 min. from my house!! I talked to the guy designing the track and it will be 100 ft. x 200 ft. (one 200 ft. straight)with some technical areas but over all a fast track. Qualifying races will be 5-8 min. and mains could be up to 30 min. if I have to run with the nitros (and I probably will). I am looking for a motor and batteries (lipos) that will let me stay with the nitos but be as light as possible and still do a 30 min. main. I have a 1950/7 and 8000mah lipos coming but I would like to find a lighter combo if possible. What would be good tires and also what gearing?

UE
8 Spyder Diff. Gear Sets
6mm Axle Steel CVD’s
Titanium Center Driveshafts
Racer X Pro Suspension Kit with Setback Arms
Racer X Supershock Kit
Titanium Pillowballs
G-Maxx
Alum. Chassis
Chassis Ext.
Single Speed Conversion
Steel Idler
FLM Hybrid Bulks
RPM Monster Clawz StableMaxx Wheels
Robison Racing Slipper Clutch (will switch to Strobe slipper when they are in stock)