Here's a question...and I'm not trying to start something here.
Why do you think you NEED a mid range knife. What is it about a Mora (for instance) or come to think of it a Hultafors (another 'cheap' knife) that doesn't meet your requirements? Do you need a jack of all trades (if so you'll be making a number of compromises) or a specialist tool? Do you want something ornate/bespoke? My thoughts on blades are I need a pocket knife for mobility carry/EDC; A 4" blade capable of carving wood/feathering etc, a filleting knife for large game/fish and a large blade for chopping and wood prep. Add an axe and or saw and I'm laughing.
Here's what I carry out in the wilds;
Folding lockable pocket knife (not safe for EDC in the UK but I don't ever carry a blade 'round town' ). Also a multitool such as a leatherman.
Hultafors GK - this will replace my old combat/survival knife that I've had since I was 18. Has a very good 3mm thick blade and suitable for use with a fire steel/ferro rod.
Fishermans filleting knife.
MOD Issue Golok (had it since my TA days) sharpened so it has a decent edge. With this I can chop, split and feather if I have to.
On my get list
Bahco Laplander
yet to be determined axe.
I'll only carry what I need for the environment I'm working in and the activities I expect to be carrying out (so If I'm going for a walk on the moors I wont be taking the big blades).
You can get quality blades now for silly money (Mora or Hultafors) that will hold an extremely good edge. Granted the sheaths are not to everyone's liking but you can get a basic leather sheath for a tenner, and something with a few add-ons (like a fire steel holder) for about £30.