We have hear a Mills Fulford sidecar chassis inc fittings in very good condition was fitted to a 1924 Brough Superior SS80 but will fit a host of machines from the time solid old thing perfect for that big machine thats getting a tad heavy for you ! collection only due to size weight
Chassis is solid surface rust only springs are good fittings as per Brough Superior SS80 fitment  front sliding tube well oiled not sized  no threads damaged stripped chassis straight no damage doubt you will find a better one ? if at all find one these days !
 
Mudguard is genuine Mills Fulford and is fixed to sidecar body see brochure for details 

One from 1914 just sold at Bonhams for £768 and that was a early veteran one not as strong built as this one from the early 20s !