if you want springs on them, you can get them at Big W or KMart. Probably the wooden handles to match also.
I bought some at the caravan show the other day as my campers bed flys only were supplied with 4 guy ropes. I didn't think at the time that the ones I'd bought were for tents and thus, way to short, so I went to Bunnings and bought 16M of rope off the reel... about $14 worth. Get into Kmart or BigW later looking for something else, and they had very similar 'ropes'... 20M for $5.50 or so.... bugger!