I bought a pair of 2019 Honda Odyssey 2nd row seats to replace the captain's seats up front. I need to remove the locking mechanisms and they are attached with six large rivets per each seat. Take a look at the pics - what would be your choice for removing them? I have a drill, a Sawsall, a 4 1/2" grinder, and a Dremel. Is an air chisel an option, or will that mangle the metal too much?