Price correction. The galvanized stand cost me $190, not $90. Oops! But you can save $35 by using 5-foot lengths instead of 6-foot. That way you'd only be purchasing three 10' sticks.
And the link posted above is where I got the plans, except I added elbows on the ends of the feet so the base wouldn't be rocking on the tee.
And people have suggested that PVC would not be strong enough.
Finally, the top bar is actually two 5-foot pieces joined by a union in the middle.