Are you sure about the range part of the SuperHornet???I've read numerous articles criticising it's combat radius when compared to stuff like the Strike Eagle or CFT equipped F-16s.Which is probably why those 2 aircraft still are winning orders,while the more modern Super Hornet still has a bare cupboard.I think there was an article in Janes last year or so about a proposed "Block-3" variant to hedge against delays in the JSF.It's supposed to be more stealthy,uprated F-414 engines & possibly conformal fuel tanks.Now that's a possible winner on the export front!!!
THe Super Hornet is optimised for Carrier-based operation. The US is the major market for carrier-launched fighters; I wouldn't expect a huge export market for the Super Hornet. The F-16 is a much more cost-efficient platform for any buyer who will launch from land only.