You said
another hard use knife. By default, that means you already have at least one. Maybe your wording was poor, maybe you don't have a hard use knife. For general camp chores, etc a Mora is a good choice. $10 maybe $15 depending on the model you buy. Regardless, not much money. Throw in a used SAK Camper (used TSA confiscations are less than $5on eBay). For shelter building, chopping, etc... you could something good on that end very easy. You can get a Kabar for $39-delievred (Brigade Quartermasters has a special on US Coast Guard OIF Comemoratives, and I have a free shipping coupon code- OP, email me if you need it

) I know another place that has Case XX USMC
Kabars for $42+PP. There is also hatchets (Estwings are $33 at Cabelas), saws and machetes that could do the same thing the sharpened prybar. Maybe a BKT when Kabar restarts production- those are very hard use and affordable. In all reality, you arent going to be trying to break your knife- even if it is a hard use knife- in a vice. If you are, you aren't trying to survive.
You can also get good guns affordably. S&W .38 Special police trade ins can be had for as little as $199. If your more concerned with foraging than personal protection, a Heritage Rough Rider .22LR/.22WMR convertible can be had for about $150 with adjustible sights and an alloy frame- new. Accurate too. Rossi Matched Pairs are almost always $99 at Dicks- 20 gauge or .410 with a .22LR barrel. The synthetic model can be used by a full grown guy. They even come with fiber optic sights. H&R or NEF shotguns are like $100 new as well. There are also loads of used .22 rifles (bolts, semis, single shots) that are $75 to $150 used- Dick's specials Remington 597's for $159 sometimes, and new 10/22 carbines aren't too much more.
You can do bothif you shop smart. Consider what you have and what you need. I would much rather have a gun and one hard use knife than 10 hard use knives and no gun. I have battoned with stick tang Buck Diamond Back Guide fixed blades- my hard use knife is an Ontario Spec-101- I paid $12.95 shipped (thank you BQM coupon code and sale price (reg 24.95). The gun allows you to hunt and effectively defend against ill intending men. A hard use knife doesn't allow you to defend yourself until he is within arms reach- and able to disarm you-
YOU NEVER WANT TO PUT A WEAPON WITHIN ARMS REACH OF YOUR ENEMY!!!!!!! It also gives you the ability to hunt- which
could supplement (or even
possibly be more fruitful than) fishing or trapping.