Another even cheaper option, I can't believe I didn't think of before because I actually own the smaller version without a gut hook, and it's one of my favorite cheap knives, very comfortable in hand.
CRKT Free Range folder with gut hook:
https://www.bladehq.com/item--CRKT-Free-Range-Hunter-Guthook--11426
Doesn't have a clip but, 3.75" is a good bit shorter then your 5" hammerhead, for around $30..
Buck makes the USA made 4" omni hunter:
https://www.bladehq.com/item--Buck-Folding-Omni-Hunter-12PT--15729
Kershaw makes the 3.5" LoneRock
https://www.bladehq.com/item--Kershaw-Lonerock-Gut-Hook-Hunting--14812
Gerber has a USA made 3.75" gator model
https://www.bladehq.com/item--Gerber-Gator-Drop-Point-Folding--16407
These all come with a belt pouch. Id be partial to the Buck, their sheaths are usually pretty solid and they stand by their warranty better then most. Gerber has left a sour taste in my mouth after some less then spectacular stuff they made after they were purchased by fiskar, but word on the street from some is that in light of lost sales, they've started upping their game with better builds, producing some in the USA again. In either case, I won't but one, but they do look sharp, and that's not to say you shouldn't persay if you like 'em.
The Kershaw is the smallest and likely least threatening
The CRKT w/o pouch is cheapest.
If you like orange, the Kershaw "Buck Commander" LoneRock model, same knife just in Orange, is on sale for under $20
https://www.bladehq.com/item--Kershaw-Buck-Commander-Lonerock--51594
Smaller yet, and with a clip, (but in the $50 range) is the 3" Buck 183 alpha crosslock.
https://www.bladehq.com/item--Buck-183-Alpha-Crosslock-Knife--21638
Made in america. Also has a sawtooth blade. You will actually have to deploy the blade to use the hook, but a 3" blade is very much more "public friendly" and nonthreatening to most...
Gerber also has a 3.6" premium gator model using s30v steel and a leather pouch if you want to give a premium steel a shot?
https://www.bladehq.com/item--Gerber-Gator-Premium-Gut-Hook--27331
* I would like to add as a good rule of thumb for budget knives; to stay away from any Chinese made Gerbers, quality is suspect, also anything that doesn't list a specific blade steel type: blade steel a good selling point on a knife, so if they're not trying to sell it, it's very suspect that the're trying to pass off subpar materials; "stainless" is not a type, but rather 1000 different types. Also stay away from any Chinese steels lower then 7crXYZ123... with quality already in question for low end Chinese manufacturing, in my experience, at least 7c & 8c = 0.7-0.8% carbon; is enough carbon content to give a decent hardness unless they completely screw up the heat treatment, anything less and you're better off buying an American made blade with quality produced 420hc. 5cr15mov is a chinese equivelant to 420hc, but for the price of a budget blade, usa made 420hc from a reputable brand is 99.99% of the time going to be consistently better quality in manufacturing. Where 5cr15mov is going to be of questionable quality, and typically runs too soft...
Kershaw's Chinese made budget knives are some of the best in the biz, their 8cr is usually on point, but I would still recommend highly against their 5cr stuff. And 3cr is just plain crap soft for a decent knife edge in today's steel market; basically your stuff marked "surgical/stainless" without a type, is often in this grade along with "420 series" (420j2). Resists rust well, tough as it will bend before it breaks, fine for saltwater dive knives or steel liners, but not going to hold an edge very well at all. Simply not enough carbon.