6 inch irrigation pipe?

So where are guys finding 6" aluminum mainline irrigation pipe in Saskatchewan? I've been looking for a while and have found nothing except a 6 hour drive one way from me and the prices have been high at around $4 a foot. I'd drive for some if it was reasonable price, but I figure I ought to be able to find something closer as well though. Specifically I'm looking for around 1000 feet of hook and latch pipe, but I'd buy more footage at the right price. Maybe someone on here has a connection or knows someone or a dealer who might sell some? Thanks