If you want to go 10 ft-you need a minimum of 43+HP,or preffeably a Catagory 2 tractor,or Backhoe/Loader like a Case 580 or JD 3-410.If it will be a dedicated amchine and you have a 9 or 10 ton tralier and a single axle (min) air braked dump truck,and CDL A.then by all means gey the JD or Case-the both weigh around 7-9 tons depending on options and 2-or 4wd,so you cant pull then with a 1 ton or even a an F550.A smaller lighter compact tractor could do the job,but not nearly as quickly or efficiently as the bigger machines.Evrn the biggest compacts weigh around 7-8K with the loader and hoe.So you could get by with a 1 ton truck with that setup,although 10 ft will be tough to dig,take all day literally if it is rocky or full of shale.