Hi guys. Thank you for the advice and comments upon such things. But, as per usual with me, I've made a couple of decisions, but I have a lot of questions... and I have to rewrite them all again because the forum decided that I needed to... aaargh...

So, decisions I've made...
It's going to be an axe/hammer bot instead of a spinner. I think this'll be easier and could probably get me going in the right direction considering costs and such.
LiPo seems to be a better choice for me, but if anyone can tell me the best way to make a rechargable NiMh pack, then please do so.

Questions... oh boy, need to retype this lot again...

1) RC. Would this be a good rc set? LINK If not, then what rc set would be better?
2) Drill motors. Would these be a decent set of drills for the motors? LINK Once again, if not, then what would be a better choice?
3) Batteries. If I do go down the LiPo route, would a brand known as Overlander work for the application?
4) The screws. How would one go around finding threaded metal inserts? And what would be decent for 15mm HDPE? Or would I be better off going with the chunky wood screws?
5) Weapon control. This one's been on my mind for a little while... Is it possible to link two ESCs to one receiver? Or will I just be blowing the poor sucker up?
6) Wires and wiring. Would Homebase or B&Q hold such wiring that I need? As I'm not entirely sure myself...
7) Connections. Would it be better to solder everything together? Or would it be better to buy a bunch of connectors?

Any and all help will be greatly appreciated, and if anything needs clarifying, then give me a nudge.