No worries Jon. It's what I am here for... to hear adventure riders describe their asses.
In all seriousness, let's see what we can come up with based on your specs.
After spending some more time on the chart and your description, without seeing you in person, I think the 2XL Short would be the next bet. The 3XL short is where we go next, but I don't want to start there as I am concerned it would be dramatically bigger and many times to-easy-on is not a good thing on tech apparel.