For safety, ground everything. And ground it to a single point, meaning if you ground the generator, the antenna surge suppression, radio and equipment grounds and all the rest need to land on that same ground.
With a temp station it's more important to properly ground than if it's hard installed. Reason is that everything is on cords that get kicked, stomped and beaten. To have a cord fail and put 110 on the earth wire in a cord is not outside to realm of possibility due to cord damage. With conduit in a wall, it's a good bit harder to cause that sort of shorting damage.
The other reason to earth it all to a common point is that GFI outlets require an earth to work properly. Don't be the guy that didn't earth and someone got shocked and hurt,,, and you get sued.