My band might be playing a gig on the back of a flatbed truck for a slow parade of bands through a town. They are asking how big of a generator we need for the band. We don't use monitors (everything through the PA) but we would be using a pair of QSC K10s and a sub (KW181 or my small PA sub). There would also be the mixer/inear monitor system though I don't think that would draw too much power. How big of a generator would we need for the truck? I'm totally at a loss. I've played on a flatbed before but it was never moving and I've never had a generator for our PA. Many thanks for any help you can give me.