Those prices are pretty good for the pipe if you can pickup in person, but with shipping not so much. Also, doesn't look like they will sell you small quantity of 1 1/2" pipe which is what I'd recommend.
Prices for risers and Constab connectors are too high IMHO. I got much better pricing from wholesale supplier Groebner & Assoc in Kansas City area. I think you should do more checking around for wholesale supplier in your area.
See post # 12 of this thread where I posted details of my prices for 1" supplies. I drove 3 hours with utility trailer to pick up all my materials.
http://www.garagejournal.com/forum/showthread.php?t=264776&highlight=kansas+city+riser
See also this thread by fellow GJer . . Madosta . . in Michigan who put in yellow PE pipe recently. He might have supplier for you to consider.
http://www.garagejournal.com/forum/showthread.php?t=265153&highlight=kansas+city+riser
CRITICAL thing to make sure you get . . . SAME sizing of pipe and risers. Most common for residential use is . . . IPS . . . . Iron Pipe Size. This is thick wall pipe.
As luck would have it I found a supply house two miles from my house that had everything I needed including a tracer wire for under $250. They were great to work with as well. For those in my area:
Hartsig Supply Co Inc
Pipe Supplier
Address: 3885 Auburn Rd, Auburn Hills, MI 48326
