Hiyas Jolly
I took a closer look at the Kayak Kaboose. It's a well designed system that uses a sort of fixed bar to avoid the dreaded tow overtake in following seas.
Check out this their gallery page.
http://www.kayakkaboose.com/gallery.html It seems to be be designed for Sit Inside Kayaks and means some serious hardware mods to attach the tow bar onto the rear deck of the lead vessel.
I mentioned this as it I don't want to judge any product without proper research.
This very lightweight package is made in Ontario, Canada at the cost of $849. Shipping costs, taxes, and Duty charges added could make this a pretty expensive solution for the US.
There is a photo of this pod being used on the Kaboose website behind a Standup Paddle board. Great idea, as SUP is taking off like a rocket in popularity.
On another thought, I have a Sevylor Inflatable SUP which could be used as a towable if the load was low and totally waterproofed. If it gets rough you can always strap the board with the load onto your akas (or tramps)
http://www.sevylor.com/Samoatrade-Stand ... 29C43.aspx I've considered using this board as a 'dinghy' for the AI if I go back to Kayak Camping and anchor the AI. (beaches are quite rare on our rocky coast). The board can also be partially deflated to save you the room to carry a Therm-A-Rest.
Use any Inflatable SUP with your load in Waterproof Bags, run webbing straps around the entire board and load. At 12 psi max this board can be as solid as a rock (excuse me GM), and is used a lot by SUP river runners (crazy dudes) lol. The board has a 4" rocker which keeps it from nosediving and can hold 250 lbs. If you properly balance the load it should work for you.
Thanks for reading my ramblings
Regards