Never installed a pressure tank this far from a house before what are your suggestions ? House is 1500 ft. from well and there are two homes running off the one well. The other home is just 50 ft from the well.
Using http://www.pressure-drop.com/Online-Calculator/ I would predict over 50 psi pressure loss at 10 gpm through 1 inch pipe. The choices could include having a maybe a 100/120 PSI water pressure and a pressure reducing valve at each house, or to have a booster pump and other stuff at the far house. I am not a pro. A booster is a complexity you would probably want to avoid.
At 6 gpm, there would be about a 21 psi drop through 1 inch pipe. That could be tolerable... have 55/75 at the first house.
With a 2 inch pipe, the pressure drop would only be about 2 psi. With 1.5 inch pipe, about 8 PSI drop...