Thanks for the replies all.
The stock would either be in the tow vehicle or our support vehicle depending on what items we're selling.
The issue we have is weather, and that's what we hope a trailer will solve. On too many occasions we hold onto the tent due to high winds. We work with oil & the rain getting in is also not good. We'd like to be able to work more events in the off-season (fall/winter) without weather being a physical concern (of course it's a concern for sales).
The miles we'd cover would be along the I-5 corridor in Washington state. I'd anticipate under 150 miles round trip for a longer stretch. Under 80 most of the time. We'd like the long term flexibility to potentially go south for the winter as well (AZ or Southern California).
We're not looking for living space at all. We may have a conversion van as an RV for sleeping, but I'm not looking to mix business with our living space (oil=messy).
My inkling is that we can get away with something very small. We do both kettle corn & mini donuts. The kettle corn setup is huge, so I'm not sure how viable that will be. The donuts however could fit in something as small as a 4x8. If we added the kettle corn, we'd need at least 16x8.
So...with that info in mind, let me put it this way. If you're looking to work consistently in that mileage range, how different & how much hassle would a bigger trailer compare to a smaller one in an urban setting?
PS We currently have a Suburban that's been well taken care of.