Here's a link to the Ulysses FB site https://www.facebook.com/theulyssesclubthailand/
they do have a trip planned.....
"The ride will be 5 nights 6 days, 2 days to get to Kanchanaburi, 2 days 3 nights in Kanchanaburi, and 2 days back. The second day in Kanchanaburi will be a ride lead by our member Grant, who will give us a greater experience of the area. We will depart Chiang Mai on the 23rd April returning on the 28th April."