If you don't find an offer closer to Wellington, you're welcome to park in my hangar at Stearman Field (1K1 in Benton). Stearman Field is 30 nm NNE of Wellington (50 miles or 1 hour by car). There's a grass taxiway (that can get a little soft in heavy rain) from the paved surfaces on the airport to my hangar.
Did you call to Wellington to see if they have any hangar space available for overnight stays? I'm kind of surprised that they wouldn't have something open for transient aircraft. A couple of the folks in our local RV group are based out of Wellington, but their t-hangars are obviously full with their own airplanes.
RV-8A (Under Construction)