A friend of mine is selling a studio-to-transmitter link used for his LPFM station for a year or so.  He uses a different linking system now.

It includes transmitter and receiver and will throw in a grid pack antenna with it.  They are professionally made.

Transmitter $1100, Receiver $1100.  Photo and details, and contact details here…

http://www.bbcnz.net/section.php?v=FM%20Transmitters&b=LPFM&p=p

Cheers,
Ross.