Anyone here repack a Leo and care to offer a noob advice? I get that I'll have to drill out the Rivets but front or back or both? ( I have access to a rivet gun but if you know the size I'd need to buy to replace that would help. ) I have packing material....and will get some high temperature sealant. And that sums up my knowledge going into the project. Sure would appreciate help...the Leo thread seems dead in the water, and you tube was little to no help in my initial search. TIA.