I was also going to mention College of Charleston.
Might check out UNC-Wilmington too. OOS cost of attendance is estimated at $42k.
Elon is over your budget but might be worth applying and see if any merit is forthcoming. Is he recruitable for golf?
Coastal Carolina has a concentration in International Management (as well as a major in PGA Golf Management). Comes in around $45k, but you never know.