P40 armchair by Osvaldo Borsini

P40 Tecno armchair by Osvaldo Borsani bought in the 1960s by my in-laws. The tubes are rusty, the foam on the back needs to be redone, the foam on the seat and footrest are in good condition, the fabric is original and damaged on the top of the backrest. The mechanism works. The 2 Techno stickers on the sides are lost but the Tecno brand is