ok so after sleeping on it, trading Jarnkrok seems like definitely the clear best move.
it clears up the cap situation near perfectly, letting us keep Timmins and have space for an extra forward.
we'd be needing all 3 of Knies, Holmberg, Robertson to be quality 3rd liners (and healthy), and all 3 of Kampf, Lafferty, Reaves to be quality 4th liners, which are both far from locks. McMann would be the one interesting extra guy pushing them for spots, though maybe some still like Steeves too.
but I think it's a good enough group to take a chance on until the deadline at least, though adding a cheapo vet before the season, whether that's a defensive or offensive guy, would probably be a good idea.