" A C130 can land and stop in 3 times its length" ? Better tell Lockheed, they sure didnt know that.
I do dislike mocking replies, especially when they are wrong. I have seen and been on several Belgian Air Force C130s that did just that at Moorsele Airfield just SW of Brussels some years ago. The runway isn't very long (not sure how long) and these Hercules aircraft would land & stop, board a load of parachutists, then take off on the remaining runway. No backtracking. Many times a day for 10 days.
I have video shot at Moorsele of one of these C130s landing backwards, obviously just the final touchdown. And similar footage of a (de Havilland?) Caribou doing the same thing.
Someone said a Dash 8 couldn't land on the SP airstrip (I think that's right, I haven't checked back). I am confident that a Dash 7 could easily land there (assuming adequate clearance to the sides). They used to fly routinely from Paris non-stop (I believe) to Courcheval in the French Alps, laden with skiers and their baggage, then fly back with a full load of returning visitors. That airstrip, which I have used myself many times, is 203 metres long and has a slope of 30 degrees. The SP strip doesn't slope and the air is much hotter, but it is so massively longer I can't believe a Dash 7 would have any problems.
Think how valuable a service between Cancun and SP would be, once it became known and people realised what opportunities it opened up for them. Adding the legal stuff to allow international arrivals and departures is relatively trivial, and there'd be no routine need to refuel.