I'd recommend an upright over a chest. Easier to keep organizer IMO. Check out Craigslist... quick search turned up one in Bozeman for $250. Not sure if you have other classifieds locally (we have ksl.com in Utah that's pretty awesome!) But I'd check that out too. Might be able to pick one up for under $100 if you are willing to drive to Idaho? Good luck!
I got the two medium and one largest chest freezers from Lowes for my bison. Any sub zero model will do as long as it DOESN'T HAVE auto defrost. While uprights are more easily organized, they dump their cold whenever you open em. A chest freezer doesn't. I only put items in em that are intended for long term storage.
With an upright, if the packages shift and fall against the door, it could open the door, and if you keep it in the garage, you might not know for a day or two.
That's awful! hope you didn't lose too much.Happened to me this week, while I was out of town.
Just curious, how much packaged meat did the Bison yield?? Those things look huge on TV. I can only imagine the size when you walk up to one and have to start field dressing. Looks like an all day job.