I'm trying to store an 18' Regal in my garage. I figured I'd just push it around in the garage, but I've drastically underestimated the difficulty in doing so. I can barely move the 4K lb boat and trailer! I am thinking about getting a manual trailer dolly, but i'm not sure if that would make it much easier or not. They also make powered dollies, but those thing are some $$$. Anyone here have experience with these?