This is very interesting and shows the infinite variability in the stuff that is "needed" to go touring. The OP is well on the way to a good ultralight setup and is leaving me behind in the comparatively heavy 20lb gear weight region of the lightweight tourist. What you carry is also somewhat dependent on when and where you're going. My goal has always been to use ultralight equipment and keep 95% of the comfort and utility of the "loaded" tourer and have a setup that would work anywhere in Spring, Summer or Fall. So I use a Tarptent Contrail rather than just a tarp and carry quite a few spares, rain gear and stuff for cold weather. Many travel lighter and I admire that.