It would be nice to have blank canopies too; some of us like to have a different paint scheme; I already have a design in mind that I think would look nice on the 700N, if I get one.
the OS in that pic is a pumped engine so the fuel line from the tank runs to the pump on the back plate
I don't know which picture you are looking at, but that is not a pumped engine. For a start there is no regulator on the carb and the fuel line goes direct to the carb!!