Sam Day and Gumby are a different story than Butch, not that I think either will be traded.
The Bombers have a heap of quality talls, probably more than any other established side, and they've just gotten Daniher in. If they could get a good deal for an injury prone Gumbleton they could strengthen another area of their list and still have absolutely amazing KPP depth.
The Suns have developing quality all over the park. Nobody is getting a game for the Suns just because they are a high draft pick. They are all high draft picks. Day might want more opportunity and he's still almost certainly worth a good first rounder, which might tempt the Suns, but I don't know enough about their list profile.
That said, I doubt either of these guys will be traded. Day especially.
We wouldn't get a first rounder for Butcher at this stage, his trade value is currently probably the lowest it will ever be. He is getting as much of a go here as he would anywhere. He is apparently incredibly popular amongst the players here. We have invested a lot of time in him and we've seen flashes of what he is capable of. The potential value of Butcher coming good is worth far more than the 2nd rounder we'd get for him, especially considering that would only leave us with a 28yo Schulz and an incredibly green Mason Shaw as genuine KPFs on our list.