Forget the Ferry, he would have to drive from Beaver Creek through Canada to Haines to get to the Ferry. The Ferry does not come to the main part of Alaska, only to South Eastern. Am Exp will not handle guns except through a licsensed dealer, so forget that route as well. Have not personelly delt with Fed Ex, they are an unkown to me. As for him getting them through Canada he would have to apply for a import licsence and that takes some time. But I understand that Canada is turning back all people with DWIs on their record, not letting them drive in or through Canada.
I ship my guns through the US Postal Service, from myself to myself. Kind of spendy, but the best way. The only problem is that Post Offices in the States don't know their regs and they themselves think it is Illegial. It takes some talking, and knowing the postal regs, to straighten them out.
His best bet is to sell them and buy new ones when he gets to the lower 48. Or do one of those small POD moves and put his guns in that, or make a small shipment with a freight company. A commercial carrier can get the shipment on a barge from Anchorage to Seattle, not stopping in Canada. He himself will have to fly, period, due to the DWI.