Well, it could probably slice an opponent up like a Klingon Bat'leth.....so it has THAT going for it...but I actually would give it an E for "Effort".
A few minutes on a machinist's grinding wheel followed by some filing and it can probably take the sharp edges off and make it safer....wonder how much weight it adds top the horn, however.
Also the bell damage is no biggie...it could probably be improved around 75%. But I do believe I spy (with my little eye) a wee bellbrace impaction into the bell...which would be an expensive repair if one wished to eradicate that.
All of this, as we know, pointing to the possibility that this damage has caused issues at the body tube as well....hole chimney warpage, maybe a body bend, maybe the bell keycups no longer aligning with their holes.
$400 tops if it has a neck.