You're probably already on it, but I'd make sure you get a tire on that rim if it's your spare...
That's actually a really good point — something I rarely deal with in the truck lanes The rear end of that trailer is going to want to swing into the pumps if he pulls out too quickly. I've seen someone wreck their trailer against those concrete pillars and not even realize it. Just don't pull close to the pumps and hope the filler hose is long.
Also, get some traffic cones and pretend they are gas station islands. Try to back the trailer in without running them over.
That's actually a really good point — something I rarely deal with in the truck lanes The rear end of that trailer is going to want to swing into the pumps if he pulls out too quickly. I've seen someone wreck their trailer against those concrete pillars and not even realize it. Just don't pull close to the pumps and hope the filler hose is long.