I definitely advocate for hitch-style cargo boxes/platforms since they, in general, don’t affect efficiency as much as roof-mounted boxes. I don’t believe you have to go for a fully-enclosed version, either. The enclosed version just provides you with a lock mechanism, waterproofing, and built-in trailer lights. But a platform style is lighter, cheaper, and if it’s short enough, you probably don’t need extra trailer lights, won’t have to move your license plate, and your rear-view camera will still be somewhat usable.

My box is typically stored in my storage unit on its small side and against a wall making its footprint effectively 3’x2’~. I’ve used it three times so far this spring/summer, so I have it in my living room for easy access. It’s on top of two folding camping chairs so that the hitch stinger straddles them.

FYI: The cargo box is bottom-heavy since the hitch and supporting frame are 2″ and 1.25″ steel square tubing. The rest of the box is ABS plastic. I can carry and mount the box comfortably by myself, but others may struggle.

You could definitely hoist the box up and off of the floor with some ceiling pulley system and straps. However, if I had my own garage, I would probably mount a dummy 2″ hitch receiver to a wall stud and hang my box from there. Here’s a sample 2″ receiver. I’d probably mount it in this orientation, too.

View attachment 684261

Good luck!