controller requirements and suggestions
 

I am working on building a TTC style truck and I am not sure how many channels I need and which controller will be the best to use without me having to rob a bank to pay for it. I will be running a summit 2 speed, rear steer and a winch (maybe even 2 winches). I have a DX3.0 at the moment and I know it will not work. Thank you for your help.

OK, I am looking at getting a Spektrum DX6i, will this work for what I want to do or is there another unit that will be better? Please help. Thank you.