I'd recommend the ZT 0220, although it's a little north of your flexible target price;
-s30v steel or similar (or better)
It has S35VN steel, which is an upgrade from S30V, but similar.
-g10, micarta or another sturdy handle material (no FRN or plastics please)
Two slabs of beefy, 0.16-inch Ti scales.
-blade length 3-4"
3.5 inch blade length, which is in the middle of the range you're looking for.
-no recurves
It has the slightest of recurves, but hardly noticeable so it may be OK for you.
-any locktype really, but would love to stay away from linerlocks
It has a mono lock/frame lock/Reeves Integral lock, with adjustable steel interface.
-no black coated blades
Just stonewashed finish to the blade.
-no preference on pocket clip
Decent clip, but nothing amazing.
-thick blade, I like beefy knives. But not a zt 0350 or most of cold steel for that matter
The blade is 0.156 inches at the spine, which is about as stout as you will ever need.
-Blade grind I'm open to
High saber grind with late distal taper. Drop point with shallow belly. The edge width is 0.0265 inches, which is pretty good for slicing, but still stout.
-no clip point or spear point.
None.
Extras:
Extremely well built.
Flipper action is extraordinarily good.
Weight is 6.19 oz, which is an indication of how solid it is. (By comparison, the ZT 0095, which is the same size, but thinner, slicer blade stock (0.12 inches), is 5.34 oz.)
Basically, it is a rock-solid, well-built knife with excellent ergos.
These run $228 at the big shops, but you can find them below $200 on the forum market. I bought mine there for $155.