Retrieval can be a battle but it's just part of the deal, I bring a heavy plastic tarp (like truckers use) and drag the quarters, with two guys it isn't the end of the world. You don't have to go in fifteen miles either, usually just one or two. My last bull was two miles off the end of a dead end goat path in region 7, countless trucks drive the goat path but never take the hike, I was told there are no moose there. Sign certainly indicated otherwise and we connected the first evening.
Anyone that thinks retrieving moose is bad (and it can be), try bison! Especially when it's -30 as it often is in the bison season, and they're nearly twice as heavy in every aspect. Or even just backpack mountain game. The physical work in retrieving is just part of hunting and a handy filter that preserves ~90% of the area off the roads often pretty untapped. When you see an area from the air you quickly notice maybe 1% is visible from the roads and trails. A floatplane lake is a perfect option too if you're looking to keep the physical side down but get way out there. Hardly an air access only lake in the peace country that won't produce in a couple days for moose.