[IKE]

Agree with others on a list. If you want to priotize, doing a NEEDS and WANTS section often help:

IE
NEED:
2015 Base Control system (Robo-Rio, PDP, PCM, VRM......)
2015 KITBOT Chassis (AM....)
4 CIMS
4 Motor Controllers
Laptop
2 XXX Gamepad controllers

WANT:
2nd 2015 Control System
Additional 2015 legal motors/gearboxes
Additional Motor controllers
Compressor and Pneumatic Tubing
FRC Legal Wire
FRC wheels/belts....
Cordless Drills other tool....

Doing a need/want type of sort can help teams understand what you need, and you will not come across as "greedy" listing a bunch of stuff in the wants (IMO).