Not exactly
I'm a little ways away from thinking about a trailer. I have to first figure out how to get the finished keel assembly out of my basement workshop and into my garage. Before that, I have to figure out how to clear out my garage from all the assorted stuff I've been dumping temporarily in there. And before that, Mother Nature has to figure out that it's actually spring time and the temperature should be above freezing (we're expected to get 12 inches of snow today through Thursday).
I like the idea of a customized one but it'll come down, as always, to cost. It's great fun, a great project. Even the things that aren't much fun are a lot more fun than other non fun things if you know what I mean.