Thanks Bruce, I will play around with this D10 and run it in a bit before moving it to the Mamod Roadster. I did consider going all the way up to D16 power for the Mamod but I have an extra cylinder dress-up kit for D10 coming in the mail and also Not sure I want to make the Roadster truly fast with the tiny amount of suspension and no plans to add RC gear(at this time) but maybe later.
I will try the Wilesco Dynamo with spring And also Rubber drive bands and see if I can get more out of it than the Wilesco video.