Hello, I may have just been unlucky when I bought a 2" thick, 6" wide plank of walnut about 12 feet long. It looked perfect, no bow or twist. As they resawed it into two 7/8" planks I watched as it twisted and warped. My pristine and expensive lump of walnut was turned into 2 bananas.
I did use a 6" length sandwiched between birch plywood to make a bandsaw box (trinket box), a couple of months later it shattered the plywood.
When I asked other wood worriers, I got the Gallic shrug, "that happens sometimes".
Expensive firewood.
If you want a vertical bandsaw you can't do much better than a Stenner Eagle 36"
Again, that's well into the "build new workshop" territory.
And the "remortgage house to buy" range also.
But, yeah, they look like they do the job.
Again, I'm looking in the sort of same range as my wadkin AGS table saw... But I think I should probably accept it's not going to happen?