A very good summation, I think (yes, the rotary switch was just a plain bad idea - they ALWAYS go, that's why most of the old Gibsons with it have been modded). Also (technically) it's not a vari-tone - that's a Gibson thing that involves a variety of "tone" settings switching between different capacitors and an inductor coil - though it does use the same switch. Certainly NOT a big issue (especially since I think Danelectro actually used the term in some of its advertising) and I usually hate it when guys on here correct people like this, but we should use the right terms.
As far as roadworthiness - the most sensitive part of any bass is the neck and either the re-issues or the JJ should be fine . As far as the hardware - other than the tuners, they are plenty capable of enduring the rigors (the bridge is going to go wonky overtime regardless of paying situation but a vice will fix that in a minute (I used my foot and a brick to fix mine).
As far as the bodies which people worry about a lot - assuming a proper hard case, which is a requirement of any kind of touring regardless of your instrument - they should hold up just fine. The only point when they are more delicate than a Fender (the obvious middle of the road working bass) is that they are hollow, but that only makes these more delicate in the case of a direct hit by something heavy and hard - which again the case will protect from. Since they are built on a frame and not like a traditional hollow guitar (and have not holes to let moisture move easily in and out) they are not really any more prone to warping, top-bow, etc. than a solidbody.