Just finished getting my Licenses for excavater/loader/grader and backhoe and was chatting to my trainer about what it would cost to build a channel 50m wide 1.5m deep and 2km long.
He said the best way to build it would be to use a Scraper the approx cost would be $1000 a day and it would take 3 weeks to complete, if the ground is easy to dig in alot less time.
With the federal election coming up governments have a tendency of throwing around money especially to sporting clubs and groups it wouldn't be a silly idea to get a proposal put together and submit it for funding,all we need is a suitable location to build the thing.