Cats Forever
"i reject your reality and substitute my own" - adam savage. i suspect my final words maybe "well shit, that didnt work"
instead of perfection some times we just have to accept practicality
yes you could solder a piece of copper sheet or steel shim stock over that area. make it like a taco pre tin the area and the sleeve crimp firmly with pliers and solder in place.
use ezi-weld 801 flux its a very strong zinc chloride based flux this stuff will allow you to solder stainless steel and monel which are difficult to do. general use you dilute at 4:1.
Cat has it for $70.44 or here are some others, try Florin
https://www.machinerytrader.com/parts/search?PartNumber=8b2280&SearchType=Start&PartsSource=Machinery