What subtitutes controllers, radios, Victors and Spikes?

[Digo]

We want to run an off-season project to make three simple student-built robots. Maybe the school won't let us use all the Inovation First material, because it's expensive. I would like people to tell me what I can use instead of the Robot Controller, Operator Interface, radio modems, Victor speed controllers and Spike relays.

It doesn't need to be so good and with such quality as the ones used in FIRST. When I can remotely control some motors to go forth and backwards, I will be satisfied. But it must be kind of cheap!

Thanks in advance for any answers

PS: please don't move this to another forum that no one reads!!!!!! nobody would answer and there would be dust accumulated on the thread!