Dave,
I bring my moose meat back from Alaska, all of it. It some of the best meat there is. Freeze your meat, throw it into a good cooler/s and check it in as baggage. It will be fine.
Terry, 540+ pounds of moose meat lasts me about two years. This is about 480#, the other 60#’s went into the other freezer.
If hunting with a partner who did not get a moose and is willing to check in half your meat, you can almost fit one full moose as extra baggage before you run out of the allotted number of boxes. You do need to ship most of you gear home. Biggest drawback with checking meat in as luggage is getting the meat fully frozen before your flight home. Often your travel time with layovers and delays can exceed 12 hours. When hunting solo, you cannot check all the moose meat, best option for me is flying the meat home vis Alaska Air Cargo. I have my meat processed, boxed, frozen, and shipped by AAC by my meat processor. It is a lot less hassle and headache. To be fully honest, after field dressing all the moose meat and packing it to the air strip, I am too exhausted, both mentally and physically, to want to deal with any more logistics the absolutely necessary to get my meat home.