Hyper ST Pro Conversion Advice Please

[Arct1k]

I'm opening myself up for some advise (abuse) on options for a new Hyper ST Pro Conversion.



I wanted to do a conversion from scratch so just purchased a new Hyper ST Pro kit - I have a Neu 1515 2.5D/F (1650kv) to go in it with a MMM (sadly the monster escaped and it is back with castle) hence I have a modded MM in the interim. Steering will be provided by a 5595TG...

I'm really only intending to use this at the track and maybe a little bit in the garden - The G3R would be reserved for the bashing duties...

The question is what to do about batteries and hence chassis layout and battery mounts.

OPTION 1 - I have some A123 packs 2x 2s2p and 3s2p that I could use in saddle formation at the rear of the truggy for 7s2p with the motor opposite the steering servo - for this I would make some custom battery mounts from Kydex.

I also have 2 x 3s2p Maxamps 4200 batteries that would fit this config...

OR

OPTION 2 - Buy a a FlightPower 6s1p 5000mah 25C for $245! This I would mount as normal position next to the spur with an RCMonster battery tray.

I'm torn... considerions

Option 1
+ No additional cost for batteries
- Weight and impact on truck balance
- Complexity of wiring
+ Potential for reuse of 4200 batteries but will they cope with MMM
+ Option to run 5s2p A123 on MM

Option 2
+ Simple clean layout
- Cost of battery
- Battery won't run on MM (although I have a 4s Polquest i could use)


Last night I leant towards 1 figuring I could always do 2 later - but then woke up and thought about biting bullet on 2 and cancelled the order for kydex...

Did I mention I might be bipolar!