One of the things on my "To Do" list is to build a trailer with a gear box underneath and some way of mounting the boat on top. I've been digging around for ideas. One of the biggest problems with this arrangement is how to get the boat on and off the box if you're on your own. The other is how to deal with the trolley wheels, other than taking them on and off every time. The mast rack needs consideration too. Anyway, it seems the Aussie Cherub guys have it sorted out! This thing is unbelievably pimp. Custom built in aluminium, with an effective roll-on / roll-off system. It even has alloy wheels! Yours for a mere AUS$6000