Rooster Sail 8.1 Complete + battens + carbon mast extender

This is the Rooster brand 8.1 sail and carbon mast extender that fits between the lower and top sections.  It was purchased with the boat, has had virtually nil use, and is not going to be used by me in Wellington (I weigh 70kg). 
I see these kits retail for $850 in NZ.
Phone Karl 0210 755 374 or email