just wanted to update this post,I have used this setup with good results.I only put in 150 gal. in the tank,its about 2/10 mile from creek to garden up a fairly steep hill[200yds] with no problem. I would like to try some baffles next to see if more water is possible. I can see that the water sloshing could be a problem with the tank setting in the bed.Straight up and down the hill seems to be no problem power wise in low I would think it would pull it full.If baffles don't work might be looking for a cheap trailer.