The thought of floating storage and a workshop is pretty neat, but it's just one more floating "thing" to have to maintain, rent a slip for, and worry about when a big storm rolls through.
Veprjack, you've got the ideal world there with a big storage facility within walking distance. Hell, I'd be happy if my theoretical marina had one that was a 5 minute drive away. I think you should jump on that if you're going to live aboard.
S/V Old Shoes
1973 Pearson 30 #255