Well what have you done with the engine? What parts do you have or want? I read the thread and I'm having a hard time really understanding what you are looking at getting out of the motor. If you are unsure about what you want it to do, it will be hard for others to help you out. My suggestion at the moment is really take some time out and write out a product plan..... realistic output goals and performance. When you make out your product plan, you need to add I would say at least a 20% contingency ( basically how much extra are you going to spend) because I can guarantee you there will be a lot of head wind with a project like this one. I wouldn't worry with wires or things like that until you are absolutely sure what it is that you want. When you get that, then you will what kind of question you need to ask first. I'm not trying to tell you what to do, just food for thought.