Yes the firefly would be a good one to start with. No rings to make but you do need to lap the piston to the liner and also the crank to the bronze bearing. This will take you straight to the drawing page, starts part way down with WF46-0001 for the A4 drawings which are easy to print off.
Have a read of how I built mine here
There are some casting kits available but the firefly would be an easier build than say the Jones 605
J
Edited By JasonB on 22/04/2014 07:57:04