I'd take a Ranger 57 and swap the silly curved blade for a small whittling blade. I'd add a gripper for a replaceable 4mm ferro rod (slot in like the toothpick) and add the tweezers
The ranger is almost all the knife I need most of the time - one hand open locking blade of proper Bushy size, bigger saw than most SAKs, tin opener etc. it does need the little blade though.
I wonder if anyone could make me one up....and a pouch...with a firesteel, small compass and silver grip tweezers....
Red,
Have a look over on SOSAK, here, as there's specialists that can build SAK's to personal spec'.
Their workmanship is beautiful, as seen on the custom builds I've looked at.