I have done the same thing to mine before. Since you are not in a hurry I would take the block to your machinist and have it magnafluxed and vatted. When you grind up bearings and start breaking things those little pieces get in places you can't even imagine. Be sure and take your
oil pump apart and inspect it for debris. Most things can be fixed but in some cases it may be cheaper to just replace. Especially since the 460 engines are so plentiful.
Good Luck!