Update on the Singer’s progress. Well, I had lost my way, then Roger good friend and panel beater extraordinaire visited the shed. Roger suggested my frame was too complex and too heavy.
Roger spoke with authority, his Apprenticeship with Lewis Brothers Bus Company, building and repairing their buses over at Glynde Workshops had given him experience of fabrication using steel tubing for framing.
He invited me out to the workshop to see a project he was working on in a back corner of the shop, an Austin 7 tourer. Construction of a lightweight tubal frame half the size of the tube I was using. Smaller tube simplified the process, shaping the tube only required bending, not cutting and welding. Yes, why didn’t I think of that.
After Rogers visit a rethink was in order.

photo from http://www.car-restoration.com/car_restoration/austin_7/austin07.html
While at the workshop, Roger introduced me to a work college, Colin, who was fabricating a nose cone for a clubman. Ray Lewis and Roy Thompson engineered and built the ASP Clubman at Lewis Brothers Bus workshops. These cars despite a relatively short 7 year history were successful road and track cars that are still competitive today.
