@syspig They certainly don’t make it easy to get hold of the workshop manual, that’s for sure! If you PM me with your email address I can send you a digital copy.
As far as I am aware the software kit is only available to official dealers, which I can imagine is a pain if you are 5 hours away from a dealer. I’m fortunate in that I’m currently living only 20mins from a dealer. Having the FI setup by someone knowledgeable made a huge difference to my bike. The dealer said the system on the newer bikes allows even more precise setup of the carburation.
If you are looking for setup information on the GET ECU then there is a 15min video here, maybe you've already seen it? It’s not a Vertigo but it should be the same process https://slavensracing.com/how-to-tune-your-get-ecu-equipped-dirt-bike/