I haven't spent very much time in NE, but I do have a good buddy just north of Big Springs, NE (and I'm in Big Spring TX now!). Having been in that area a little to hang out with him, I think your going to want a fully enclosed box like the AFE stage 2 from 5 Star, and a filter with top level filtration. You have pretty good areas to go off roading up there and they vary from creeks, to sand hills with lots of dust and wind??? I think! So an enclosed box to keep the water out and a great filter to keep that dust out. I've run K&N's before and there always ended up being dust in the tube. Just got me AFE from 5 Star today, so I haven't put it on yet, but it would be my best guestimate that it will work well for you too. If your concerned about hydrolock I guess you've got some places to run up and down the North Platte? Beautiful area there, I wanted to run my Raptor thru there, but had to settle for some sand hills instead!