If you have enough coin, people will work for you, decent reputation or not.
I'd eyeball it as between 5 and 10 silver per man per day for simple pack mule-ing. (Based on the Services table.) That's for someone to sit outside the ruins, caves, or the entrance to hellish location #314 and tend to the animals. Going inside and endangering life and limb; however, would be extra.
This seems about right to me. The important thing is, these hirelings shouldn't be expected to do anything really dangerous on your behalf. Sure, they'll take care of the horses, feed them, keep them from running off, exercise them, but as soon as any trouble arrives, they'll be abandoning them to run away or just outright surrendering if that isn't an option. Sure, you can get a guy to carry a torch for you (Aziz, Light!), but if anything scary happens, your torch is going to be running away.
Now, if you are looking for someone who is going to stand shoulder-to-shoulder with you through thick and thin even when the shit hits the fan, then yes, you are going to need to use reputation, renown and/or feats.