1976 MZ ISDT replica

one of those tuesday night's in the loveless shed, i'm looking at a way to mount the expansion chamber bracket, rummaging about in the parts box i come across a four-stroke race can hanger, it's twice the diameter of the little two-stroke stinger but i reckon i can adapt it to fit, i pull an old sporty shock out and measure it up, it looks about the same diameter as the stinger, out with the caliper, spot on, i drop the rubber out of the clamp and wrap it around the stinger to see where to cut it, i bend the hanger around the shock and hammer it to shape with a rubber mallet, drill four 5mm holes in it and replace the rubber, fits like a glove but need to fab a spacer/hanger, dangerous is on the same wavelength and takes the stock off me after i've end-milled it up, we then waste an hour arguing about what shape to form, i win but have to give in to his idea of radding the bottom of the bracket to fit snug against the stinger, he lobs the work at me and leaves me to tap the holes out while he cut's down the mounting screws...............