yeah maybe vespa above tomos on my list 2 (usa parts availability has recently sky rocketed), i still think its tied with derbi for most potential but also comes with the most work to get that potential
french bikes do reign supreme IMO when it comes to all around performance vs ease of build and part availability so i have placed the Peugeot high on both lists. Obviously puch is taking the topspeed seat and easiest of build out of all with part availability and general knowledge the highest.
honda isn't up there with vespa or derbi for reasons mentioned earlier about gearing and just general lack of parts and ease of build. i think minerelli is an underestimated puch rival so i placed it high, but has a less clean motor design.
I think any bike has the potential to be the master blaster 4 sure. even a solex