I use the Kriega tank harness and one of their tailpacks on there. No fuss, and definitely not over �100...

I got myself a US 10 and a US20 the other week, even made a harness to fit a 5l fuel can to the US20 (opposite the US10 when it's in US30 configuration), sorry, going on again.

The tank harness, I can't find any at any of the usual suppiers, are they any good and where did you get your from ??

Yup they're good, though you need to fit them backwards on the Ten. I got mine from the Kriega chappy at the bike show last year when they launched them. They have them on their site- kriega.com along with lots of other goodies.