Trouble is these days a battery powered angle grind will cut any thing in less than 60 seconds.
I borrowed one to get me dingy unlock from a post on the beach it had rusted up it took less than 30 seconds to cut free
I gave it to mangrove frog on my way past a while back no one would steel that dingy.
This photo was taken when I first brought the Yacht by the time Magrove frog inherited it one side was hanging off . Probally looks like as million dollars after mangrove gave it a tidy up
Id rather buy a high voltage coil off an old mercury out board 60,000 volts will soon sort them out if its wired up correctly