Run your fan on low when you need to have the breeze for comfort. My turbo maxx is rated at 1.4A on low speed IIRC so it's reasonable to assume your fan is probably going to draw 2A or less. Most likely you'll be ok for a couple of nights, but beyond that all bets are off.
I got a 75W panel and basic Morningstar controller recently; with wiring and all I have less than $150 into it. I hacked a 6' extension cord and used the plugs in my wiring. Now I can set my panel in a sunny spot 50' away if I want to, and use my usual 50' extension cord to reach back to the controller that I'm plugging into the trailer's pigtail (the one that would otherwise run to the tow vehicle).
