Had a go at starting to assemble the trolley today. I need the trolley to be completed before I can get on with dismantling and cleaning up the cylinder block. With a finished trolley, it will mean that once the cylinder block has been cleaned and painted, I can start to rebuild it on the trolley. I fitted the pillow block bearings to the underside of the trolley and inserted the 20mm stainless steel axle. One of the wheels fits fine, but the other has a very wonky hole through the centre. This appears to be an original defect as the wheel is quite old, and must have been drilled out in the afternoon by someone who went to the pub at lunchtime! I will need to find an engineering firm locally who can possibly drill it out to a larger diameter and insert a sleeve.