There is a flexifoil buggy for sale on eBay (not mine). Current auction price is at only $56, so it may be a cheap buggy for someone in need.
http://www.ebay.com.au/itm/Fliexfoil-Kite-Buggy-/161226777819?pt=LH_DefaultDomain_15&hash=item2589dd64db&_uhb=1
There are some bargains going on gumtree at the moment.
MBS Mountain board $150 http://www.gumtree.com.au/s-ad/1134874398
3.3m flexifoil blade II $100 http://www.gumtree.com.au/s-ad/1134391239
OZONE IMP 2.5m $85 http://www.gumtree.com.au/s-ad/1134801868
MBS Mountain Board $200 http://www.gumtree.com.au/s-ad/1134331963