That really sucks, I had the same thing happen to me 21 years ago with my 73 Hondo flat with a blown injected 468 in it. The boat and trailer were found all cut up into pieces but the engine and everthing else was never recovered.
I will watch the online classifieds and such for anything that may come up.
I HATE LOWLIFE PEOPLE LIKE THAT AND I HOPE THEY GET CAUGHT