I share your fascination with plastic ship model R/C conversions and likewise hail Lindberg as one of the main suppliers of worthy conversion models. To date I have the Diesel Tug, Tuna Clipper, Shrimp Boat, North Atlantic Fishing Trawler (complete but de-engined right now), Minesweeper, Coast Guard Tug, Coast Guard Patrol Boat and a few other Lindberg kits I'm sure.

Right now I am looking at the cheap Chinese 10A Brushed ESC which are all over that popular auction site. Have not tested the one I've got but at $10 shipped, it is a very good deal. Here's what I came up with.