I'll offer a couple of things...
Foam filters can go many, many miles (think 20k or so), depending on the envirnoment.
I would not choose a KN for longterm travel.
Oils and tranny fluids to renew foam filters can be found most anywhere. You don't need a special mfgr's labeled brand.
Get a good one to start; and the factory filters are good.
I suggest thinking more about oil filters for your specific bike.
Without good filtration - air and oil (fuel may also apply) - the aliens can get in and ruin your fine bike in short order. The barrier, so to speak.