I'm surprised that is aluminum, but i'm not too familiar with newer 44's and have no intention of ever playing with one.
aside from serious doubts about how durable this would be, it would be almost impossible to get those aluminum parts clean enough to tig weld.
Tim M Hovey
1950 cj3a: FJ60 Axles, brakes, and steering, Willy's
sheetmetal and a Buick engine, held together with
metal from the scrap yard glued together in a garage in
Louisville and dragged around behind a F350 Diesel.