Submersible well / Pressure question

Wells & pumps are my business. If you are adding load to the existing well there could be pump capacity issues. If there is no net load increase to the existing infastructure, you should be fine. Rule of thumb in our area is 7-10 gpm design point per single family household. 2" schedule 40 PVC will be more than adequate for an 800' run on level ground. Add a couple 80 gallon bladder tanks for storage and you should be golden. If you are adding load to the existing pump with your new home, a larger pump may be required to meet peak demand. You should check on a constant pressure system, which a local water service vendor will be familiar with. Good luck with your new project. It will be more complex than any car building project you will undertake.
Cheers, Rat8)