He could get a "quick-draw" belt sheath for it. Love mine. Drawing from the sheath opens the knife, then with practice, the knife is closed and put back in the sheath with one hand as well.
Personally I prefer the 112; it just feels like a handier size for most chores for me. My choice would be a 112 with s30V blade and Walnut scales ($96.50 direct from Buck) and a quick sheath (mine was $40); just within the OP's budget. Nothing wrong with the 110 though, if the extra size doesn't bother you.
Either way, anything goes wrong with that knife, Buck'll fix it. I have my dad's 112 that's over 40 years old (and has seen some hard use). It's on its second blade; he had to have it replaced when it snapped while we were using it as an emergency tire bead lever in the middle of nowhere, before the days of cell phones (I know you're all rolling your eyes at us treating a good knife that way, but it got us home in an emergency, which is the most you can ask of any tool). Told Buck we voided the warranty and would pay for the repairs. They still fixed it up like new for free.
The only caveat I can come up with is that neither one is a knife that's comfortable to carry in a pocket. If OP absolutely doesn't want it on his belt, or if his organization will get scared by a leather pouch, then it might not be the best option.
