

The wooden deck is a weird element to bring into it. In the US decks are sometimes there for conservancy reasons. They’re present along parts of the Appalachian trail.
I might instead draw the line based on whether members of your party are putting it up and taking it down as part of the trip.
But I could also see electricity being a reasonable dividing line. Like a cabin several miles from where you can get a motorized vehicle might be more camping than a tent in your backyard that you ran an extension cord and a TV out to.
I’m ok with others drawing lines elsewhere though.
If I’m remembering right, transportation of a food item makes up no more than 2% of the total carbon emissions for that food item.
Eating local produce can have a big impact on the quality and freshness of food, but has comparatively small environmental impacts. It won’t make beef greener than beans, no matter where you choose to get each from.