Good evening RonH, I only began sailing with METRO MARINE MODELLERS here in Southern Ontario about a year ago. I had a trawler & a fast electric from back in my working days (I retired in 2015). Two gents, the first guys who took me under their wings, had Springer tugs.
I checked out the Zippkits website and ultimately ordered 2 kits, one single-engined, outrunner brushless (640kV, so high torque at low rpm) which you heard abt already, + one that will use two brushed 540s altho its not even started yet. Cost of FEDEX or USPS from Florida into Canada is $$$, however the kits & drivetrains are relatively inexpensive...& the laser cutting & plywood is very high quality.
I hav elected to use 6V SLA batteries as 1) I need the ballast, & 2) LIPO batteries scare me. Most of my other projects use NiMH, typically 7.2V
I bought a variety of video cameras & transmitters on AMAZON. I am Amateur Radio Operator VA3ROD, & thus can possess & operate rf transmitters that uncertified hobbyists cannot. If you send me a private msg i will reply with the URLs directing you to video products on AMAZON.