Hi all,
I'm ready to spend some money and need help spending it!!!

1st on the list is
1/8 8IGHT-E 3.0 Race Buggy Kit

2nd on the list is
[B]Castle Creations Mamba Monster 2 with NC1515-2200kV motor combo

Is there anything else I should be looking at, I've played with Mamba's for a very long time and am very happy with them.I'm not into track racing I just like to drive on the street out the front of my house and sometimes do speed runs.
I'm planing to run a SPC 3s 6500mah 11.1v battery and/or two SPC 3s 6500mha 11.1v in series to give me 6s 6500mah 22.2v.???
What size pinion should I get???
I'd like to know must I run a external BEC with 6s???
Also i'd like to know what servo would work well with this set-up???keeping in mind i'm trying not to run an external BEC.

3rd on the list is
A brand new Radio System (controller/receiver/servo).
I've been looking at the,
Futaba 4PLS 4-Channel 2.4GHz S-FHSS Telemetry Radio/ R304SB 4-Channel Telemetry Receiver.
and while I'm buying that i'll also get the
Temperature Sensor(SBS-01T)
I like the idea of this, knowing the motor temperature just by looking down at your radio just seems to easy and and hopefully stop before cooking
Also i'd like to know what servo would work well with this set-up???keeping in mind i'm trying not to run an external BEC.

Some other things I was thinking of buying are
Losi plastic spur gears:
43t
44t
45t
Castle Creations mod-1 pinion gears
15t
17t
19t and maybe higher for speed runs

Losi Race Wrench: US 4 pc Set LOSA99104


Is this a decent list???
Is there something I've missed???
Is there any recommendations???