If you're willing to spend the money, then get the long travel. Don't forget you'll have to get new shocks or have your current ones lengthened.
But if you're not going to see a race track, and are just woods and dune riding then I would stick with the stock travel. Unless you've got money to blow, of course.
JD Performance can help you get the proper ball joints for your Laeger a-arms, or I'm sure somebody on this site has the proper part numbers The owner of JD, Dave, used to do most of the welding and fabrication for Laegers.
I bought +2 long-travel JD arms last year and I love them. They're really solid units. I was impressed