Thanks again everyone. I will ask about upgrading the sizes of the 1.5" lines to be 2". Even if the pipes were fine for this pump -- I'd like to build it so it could handle the next generation pump as well if it isn't a big $$ upgrade (which it doesn't sound like it should be). He did mention the header would be larger but I don't know the details. The Jandy Stealth pump I selected has a 2.5" line but I don't know that it matters when you also have a filter and heater to go thru that are probably 2". Dig day got pushed back until next week as we are expecting rain all day tomorrow and all weekend. Bummer.

Big_D - I talked to 4 companies and went with Hobert. Riverbend was a close second place. So far Hobert has been great -- any stress I have had about pushing and changing things has been my own, they haven't been negative about it. A friend built a pool with them 4 years ago and had a generally positive experience (nothing is perfect). Thanks for the offer to answer further questions -- I may be taking you up on that. I think owner builder would have stressed me out too much.