Thanks for the input guys. I actually did try to start and assemble my own similar kit (2.6oz Evernew 550 ti mug, Esbit wing stove), but found that the fit on the ti wing was not great and very unstable. (I think that it just works better with a wider pot, since it's a lot better with my 600ml short/wide pot, although not great.) The LiteTrail stuff is supposedly modded for a better/more stable fit, but I really can't say for sure how much of that is just marketing. From looking at it, it really does look like the system fits together more nicely than a combo of parts, but at a certain point, it may not be that huge of a deal.
I'll take a closer look at Ruta Locura- thanks for the thoughts. Most of the stuff they do is not really targeted at what I'm looking for, so I tend to forget that they do have some good accessories (pots, lids, etc.) in there.
(That said, if some poor soul looking to unload one of these sees this, still hit me up.)