Doug,
I am totally appreciative of the picture and the time you took to respond. Also, trevorp and Chris, your input is valued. As I have stated, I know NOTHING about English bikes, and less about Douglas’s (which mathematically translates to negative knowledge). However, I do plan on becoming knowledgeable to return the favors, even if it is simply sourcing remanufactured “OEM” parts. I have found a local tube-bender willing to bend 1.375, 16 ga. tubing about a 6 inch center radius, the approximate size for a T35 Douglas. It will only cost me $100 ea (U.S.) and I plan on having several made (on time set-up change). The pipes will be a minimum of 4 feet long on the exhaust end. I will cut to suit. Also, I have a source for rear finders for the same bike. Again, the cost is only $100 per fender and they come as a “blank”, which means I can cut the side profile and arc-length to suit. If I can help you folks out, let me know. As for the Vertical carbs, I am thinking of making a Vert to Hoz flange via CNC (unless I find the correct carbs).