would not want to tie a truck up all the time so is why I said hyd power pack. I think you will know that you cant always get vehicle close to drilling site especialy on flood plains. With about 1mtr top soil and the rest virtualy sand down to bedrock it is not a major engineering job.. I suppose if money is no object then contract in a drill team and make sure you get a good deal on holes drilled. Dredgemaster