We put in taller toilets when we built. Love them.
Yes, they're calling the taller toilets "chair height" toilets. When you get as old as me it's a lot easier to stand up from a chair height toilet. People I know that have them say that everyone at their house gravitates to the bathroom with the chair height toilet. They're no more expensive than standard height toilets. They start at $99 at Lowes.I agree with the recommendation to buy a tall toilet (17"). I also recommend buying one with the larger V-shaped bowl instead of one with the smaller round-shaped bowl.
I've done two water main jobs during my life. I rented a trencher to do the digging, then used glued schedule 40 PVC pipe for the water main. I left the old pipe in the ground.Black Poly is still the standard for water lines outside.
Something about the pressurized flush is unsettling to me. I don't have one but pressure flush toilets are common in hotels I frequent. I don't know exactly what bothers me about them. Maybe I'm just not accustomed to pressure flush.FWIW, our toilets use a pressurized Flushmate mechanism instead of the typical gravity flush float and flapper mechanism. With a FLushmate, your toilet never sweats in humid weather and it has an extremely powerful flush. The Flushmate stores the water in a pressure tank as opposed to gravity storage.