Nosey-P

Hi everyone, I'm new to this forum. I have a few Hayterettes, a Twenty One without an engine and have been after a decent Osprey for a short while. I picked up a clean non running 1974 Osprey for a bargain price recently, I've changed the coil to the newer electronic version and with a fresh tank of fuel she started first time. Unfortunately after a couple of hours work the rear wheels locked up. I stripped the clutch assembly to find that the clutch liner had parted company with the drive sprocket and had jammed in the drive chain. I intend to re-bond a new lining back onto the sprocket with epoxy resin once I've found a supplier. Shame, I had three old Ospreys ten or more years ago which due to having nowhere to put them, I got rid of. Does anyone have a copy of the parts manual for these mowers? I shall post up a few photos when I can.