Andy,
I wonder how hard it would be to build your own stove pipe similar to what kifaru makes ?
I've found some web sites that describe making stoves, even small ones. Making your own portable stove pipe I'm less clear on.
Since the kifaru stuff is expensive, it seems like a valuable exercise to consider how you could make your own equipment if that is feasible. In a societal melt down, it occurs to me that someone might try to steal my equipment. If that happened, I could be out of alot of valuable stuff I couldn't replace. I'm sure I could not make something quite as compact and portable as they do, but I do wonder what might be possible.
Some of these little stoves seem like they could make overnight canoe trips in the spring more feasible as the nights may be cold ..
Here is something that seems similar to kifaru stoves:
http://www.titaniumgoat.com/stoves.htmlThis company also sells pipes separately, maybe that would be an option. I guess they are stainless steel or titanium. That being the case, I am not sure how the heat would not effect the tent fabric or if I am not getting the whole picture. I didn't see where kifaru might sell stove pipes separately.
http://www.titaniumgoat.com/pipe-parts.htmlI guess what they have is something called a stove boot that you sew into your tent wall:

This is a home made stove:
