I bodged similar in my earlier years with new bolts, and made a couple of collars for the bolts out of a cut down and drilled through broom handle(which I got a slap and bill for!!), then obviously springs around the collars with bolts through, just a bit of measurement needed that's all, and in 3 years the collars still lasted well, thought they might disintergrate with the heat but they didn't.
tabetha