I'D look at Big Stone on the Dakota/Mn line, Devils Lake, LOTW and a sleeper house. Gull Lake by Brainerd,Mn could be good as well. Tons and tons of places and opportunities. Oahe could work as well...
I've quite a bit of 340 experience. Personally. I'd have that factory brake cut off and toss it and have a Terminator put on it. As well I'd have it bedded. The 340's always been one of the most accurate rounds out there in guns that are well done. Should be in the 3/4" range for 3 rounds...
I'm a huge fan of TFO, grab their entry level rod in a 9' 5 weight (or something darn close), some SA line double taper WF floating and an inexpensive reel and you'll be golden.
I've been watching this since 1982, year in and year out (no matter snow pack level) it's May 13th until things really pop!
No doubt we'll find a few between now and then but that's going to be when most all the state really gets to going and the hills come alive with bruins. (side note, there...
Boy howdy you're right about impossible some of these lands are impossible to ascend, descend, cross etc. My wife had a permit in there this last fall and we often found ourselves in places impossible to negotiate!
Add this CE if it goes thru (which I'm sure it will) to the one that's already...