A good steel like VG-10 or S30V, not something like 440C/AUS8
PS The only knife I have found that fits all of these requirements is the Blade-Tech Pro Hunter Magnum, but that's a bit on the expensive side, so please try to suggest something cheaper!
Not to pick on you at all, but saying 440c and aus8 are "bad" or "not desirable" is a bit over board, I won't pick apart your steel choices, but it really matters how the steel was heat treated, I'm no steel snob either, I'd take a perfectly heat treated 440c knife over a questionable d2 or s30v steel any day. Not to mention, in a survival situation you will probably end up having to sharpen your knife, a softer steel will be easier to sharpen.
Also, a folder may not be in your best interest, I'm trying to understand what you're getting at, fixed blades are wonderful for survival AND bushcraft.
I wouldn't abuse a liner lock by batoning with it.
It seems to be inferred that a folder will be your main knife, while I think that it would be OK for most of what you're looking for, you also are talking about it in a survival situation.
Ruling out a Ritter Grip, a folder with a nice flat grind on it, designed by Doug Ritter with survival in mind is somewhat of incomprehensible to me, I think it's also s30v steel.
Ruling out the right knife because of the price isn't something that should be done, the right tool for the right job means even more when you NEED the right tool. I'm not being condescending but if you can't afford what you need, or what you think you need, your time may be better spent saving up money for the tool you need for your hobby.