I did fit a bathroom 2 years ago for a cancer patient who started it but was unable to finish the job but plumbing does cause me a lot of pain now due to arthritis. It is also becoming difficult to get up off the floor ! I usually do jobs where my Nephew is also at the house. Older age makes things difficult.
Last year , i had 3 house roofing jobs. The roofer did one complete and the two other roofs, he did not turn up. These were both 7000 pound re-roofs.The one that was done was my own and its superb but he has let down the other 2 so not recommending now. Bear in mind Dave, i have done many years of minor plumbing if you get stuck.
3 years of mostly plumbing in the schools before retiring.