Gee thanks man! Yeah, turned into quite the mammoth thread. A lot of time but also a fair amount of detail and documentation. This was my attempt to give back to the community - because up until this thread, I had been a silent observer, reading and learning from afar. I have gained so much knowledge from other generous posters over the years that I am thankful for.
Shocks are YSS ECO-Line - Twin Shocks Eye-Eye 300mm. Got mine from Wrenchmonkees.
Stock rear sprocket, 17 on the front. Could easily be a few less on the rear - will be looking into this in depth for my new build.
Try welding a nut to your bolt it first. If you want to drill it out, buy a set of left hand drill bits like Tunafish or Docrat suggested
Used the stock coil, never had a problem with them. Theres a bunch second hand on ebay and they will do the trick. Just get new lead, plug and cap.
Failing that, any single coil would do I guess. I don't know if I would trust a tiny moped one though? Cylinder compression will be larger in the SR than a scooter - meaning a harder time for the spark to jump.
Working on getting the bolt kit back in stock!
Thanks again bud,