Best idea I've seen is to fit an oversize drain plug
below the waterline. Secure the dink on shore, or on a dock, and take the plug
with you. Now it simply can't be launched without sinking it.
in the engine
? Would work if the engine cover was plastic, and you supplied power to the tracker. $150-200 would buy you a Zoombak, which is about the cheapest, plus another $150 for the annual contract
You can do something direct with APRS, if you are a licensed ham radio
operator, but that will still cost you a couple of hundred to set up.