Voicemail is fine — say the piano type and both towns and you'll hear back, usually within a business day. Moves get scheduled around the crews' regular work, so a few days' notice beats a same-day scramble (though it never hurts to ask).
Bonus points: door widths if anything's tight, and whether the destination room is picked (moving it twice costs like moving it twice).
Grand Forks and East Grand Forks first, plus the wider Red River Valley — Thompson, Manvel, Crookston, and out to the farms. Longer hauls (Fargo, the lakes) are quoted case by case.