Does anybody have 1 1/2" hoop tubing I could buy???

[magnitude]

Hey Hoopers!

I am involved with a fabulous circus and we are doing some
performances this summer in which I will need a large hoop. I want to
construct one large enough for two people to hoop in it at once..aka
tandem hooping. We REALLY do not want to order the tubing of a
website because the smallest amount it's sold in is 50ft quantities
for $100. We will only need about 20ft of it. We've done an
extensive search of home improvement stores, i.e. Home Depot,
Lowes...and cannot find it available. Does anybody have or know of
where we could get something appropriate that's not gunna bust our
wallets???

Thanks!
~Maggie