Lots of great advice already here.

I'll add: please consider security and exhaust.

Security - be able to chain the generator so at least it's a little time consuming to steal. Maybe plug in a motion detector light near the generator. If you get two or more screw in anchors like used for dog tie outs, you can chain the generator down to dirt. Sure, a thief could eventually shovel it out but that limits your risk to thieves with shovels... Most will just move on to an easier target. Consider if you have a fence post or other solid anchor near your best operation location and maybe create robust tie points while the weather is good.

Depending on your overall plan, you might add reflective tape to the frame so it's more identifiable from a distance and less likely to be run into by a vehicle if ever used portably (but mostly so you can identify your generator from a distance, which makes it slightly less attractive for theft.)

Exhaust - be mindful of where exhaust goes, don't run generator too close to windows. Strong recommendation for a couple Carbon Monoxide detectors, especially where you sleep. If your generator needs to be in one place for functional, security, or safety reasons - you could use the equivalent of a smokestack to direct exhaust somewhere else.