I recently got a frame from a 2004 Bajaj that had a small engine fire and was an insurance write off. Just the frame as everything else had already been cannibalized and then it just sat out in the weather for a couple of years. Pretty faded and hazy, but hey, that'll buff right out!
It seems the frame is a LOT stiffer than I am used to, the leg shield corner hardly flexes at all and it has some additional frame bracing that Vespas lack. This particular model doesn't have large openings in the leg shield for turn signals, just 2 holes on each side for surface mounting I guess(they were already gone). The leggy/floor measured 1.1 to 1.2 mm thick at the edge while my AllState was .86 to .96 depending on where I measured.
It turns out that the body is really straight and the original deep red paint is pretty tough and buffs up nicely. And the paint's 99.9% all there on the frame so matching for the headset, cowls & mudguard will be the biggest challenge.
I will probably gather pieces for a Frankenbike and take advantage the no blinkers look. I even found a set of blinkerless cowls that fit right. I need to find a fork, but have a motor I can use.... headset? I have a trap headset that needs some fixing. What else would I need?