Welcome!
If you've earmarked a grand, then the 150w god box is not a bad place to look, but also you should look into TEMPERATURE REGULATED models, they are the new fancy.
Realize you might also want a 30/50 watt box for
vaping in non-cloud friendly environments. Not everywhere is it polite to release weather systems, and the power of that thing is hard to rein in when 3.1 volts is over 20 watts. The more disruptive the behavior is, the more attention it garners, and the more likely it will be that you'll be asked to stop.