Those look pretty slick, but pricey compared to what I was thinking of spending to try this out and see if it is something I want to do again (a little under $300 for the 12 qt, which is pretty small, and up from there for larger sizes). If I borrow my friend's big pressure canner pot, and pick up a propane outdoor cooker (w/ accessories) that I do want to use for other things anyway, I'm into it for around 70 bucks, not counting the jars, lids and rings. Plus I will probably get one of those jiggler things. So somewhere around a hundred bucks all together. That seems like a reasonable threshold for something I'm trying.We picked up a Presto Electric pressure canner. It's a bit smaller but being electric it's just plug and play and you don't have to baby sit it at all.
I just cold smoked a couple tuna loins for 90 minutes and canned it alongside our other tuna varieties (garlic jalapeno and Siracha) last week. Have yet to try it though!
Canning tuna didn't smell up the house at all either.
I don't have cold smoke capability but I could put some unbrined tuna on a smokey offset barrel smoker for 5 minutes or so and I bet that'd be pretty good.