Cost-Plus Under a cost-plus arrangement, the owner agrees to pay the contractor the actual costs of construction of the project plus a predetermined fee, which may be in the form of a stipulated amount or a percentage of the construction costs.
How often a horse needs to see a farrier will vary from horse to horse. I find that with my miniature Shetland ponies the farrier needs to come out about every 10-12 weeks depending on the state of the hooves.
Endurance horses can go 100 miles in 10-12 hours, so if your horse is super fit, he could go 100 miles a day (he would be too tired to go all 24 hours, so we'll say 100 miles a day) so 300 miles in 3 days.