Well, since you are up in MN, you have all sorts of time to watch Youtube vids of different rigs to get an idea of one would suit you......I do like a rig with a lot of tone features...thats why I consider my F70 as the perfect one to measure all others against...they call it a 'Patriot' now...
I know of some places up N and West of Red Lake where old school houses used to be, old cedar dovetail construction...Man, I'd like to make a run through there again someday with my detecting gear! I was just a farm hand, gravedigger, and beaver trapper, heck, was a wild rice harvester even, poling a canoe through the paddy!... eelpouter, sucker spearer, woodcutter.....
I was all over that area by Fosston and over to Bemidji trying to eek out a meager living...so I know that area pretty damn good...dismantled a few of those old school houses just so the farmer could plow that section...Farmer just wanted them gone...no visible trace left...stack the cedar over by the woodpile...
Man..some really old dirt up there...weird abandoned houses/communities way out in the swamps around Grygla/Northhome back from the Indian wars when people just up and took off in a hurry..skirmish sites etc...damn hard to get to though...I doubt these places have ever seen a coil...
Its quite a read about those old MN Indian wars..that alone would keep you occupied all Winter just doing research...
MN has some hella history going on...maybe even Viking...if the Kensington runestone is valid...I'd love to go hunt ancient Northern MN dirt with a detector..its a whole 'nother World up there...surreal... Moose, Bear, Wolves, Mosquitoes, Swedes, Finns, Norwegians, the smell of peat bog fires smoldering......unlike anywhere else a guy would want to live let alone try to hunt, except for a trapper.....