Yep, all us newbies have to go through the process of learning about transportation, storage, rigging for fishing, photography, etc. This forum is such a great asset to us all. Here's my 2 cents on storage and transportation of my Tandem Island.
Not sure how well Hobie cradles distribute the weight since they're typically only a two point contact. I felt they cost a lot and had limited utility so I borrowed an idea DogsLife used on his trailer.
I built my trailer with an 8' long by 4' wide piece of Poly privacy lattice. I don't think you can get more a widely distributed support system with lower cost and ease of assembly. If I had to store my TI off the trailer I'd build just the base (4'x8' x3/4" plywood with two 4"x4"x8' beams supporting the lattice. It supports the hull and both amas. I'd then attach mounting brackets to strap it down and use a Garage Gator (220lb capacity) to hoist it up out of the way in my garage. Trick is finding a 4x8x18.5 clear vertical space in your garage. For me the trailer serves both purposes.
There are some details under another post: viewtopic.php?f=73&t=35829&start=0