Horses, guinea pig, parakeet and cats

Looking for someone to care for 2 horses, 1 Guinea pig, 1 parakeet and 13 cats while we vacation. This will be 2 or 3 times a year for under a week to as much as 4 weeks, . Job involves feeding horses and picking up manure in dry lot. Guinea pig and parakeet need to be fed; depending on length of trip, may also involve cage cleaning. Cats are in several different pens on property, so they will need to be fed and have litter boxes cleaned. This can be done in about an hour if you work hard. You also must be willing to take any injured animals to my vet(s), or wait for the large animal vet to arrive on property if a horse is injured. Contract and references required.