a few years ago I built a 1x6 commuter for a friend. This uses a 3/32" chain, but it is fitted to a 1/8" aluminium chainring, meant for a fixed gear/singlespeed. The chainring (which was obviously too wide to start with) was filed on the sides of the teeth until it was a fairly snug fit with the chain. The teeth are full height of course. In this setup the chain seems to be remarkably resistant to falling off, at least in my chum's use; he doesn't normally use more than four of the sprockets though, so maybe it isn't going to be as tough a challenge as a 1x8 system where you do use all the sprockets.
After about six chains the original chainring is almost done and the next one will be a 1/8" steel chainring, similarly modified.
Anyway this approach is probably worth a go, a lot of 130mm BCD chainsets come with this kind of chainring.
cheers