I think its $600 for a general licence, and $1000 for an outfitter subsidized licence.
410 is an unlimited area for archery and limited for gun. Last year there was about 2400 archers that put in. Killing about 160 bulls or something. Their is some monsters for sure but finding a place away from all the people is a joke. If I remember right the fish and game said that there is about 9000 head on the north side of the missouri from unit 410 to the end of Fort Peck (don't rememember what unit that is). Their fairly concentrated however, and a good share are on private land, so you can imagine the number of people hammering what little public there is!
To me fighting the crowds and tring to find an elk that hasn't been call educated is about like hunting martians. Good luck if you decide to go next year or for any who decide to go this year.