Thanks Dave...and Dave!
My motors are 12V, BT is 7.2V and my winch motor..as yet undecided.
I have however, whilst beavering away this afternoon, got apair of electronize FR30HX speed controllers handy, brand new. So, I may just fit these for the time being. However I still wanting to go along the ACTion route at some point.
I'm unsure of weather or not I'll want nor need tank steering for the tug. Unlikely I think, but not out of the question. I will however be adding working lights yes.
Also, I have a few different type of batteries but I think 2 smaller batteries will be the case.
Today, I've finished the Skeg off, sealed, sanded and smoothed. Running gear is part way through fitting, which I will finish tomorrow.