A few people on other sites have installed it themselves. McCruise.com, I believe is the website and I'm quite sure you can order it direct. Based upon Australian vs USD conversion rates seems I remember the unit about 600-700 bucks, plus/minus. The rest was/is labor. Randy Prade, KLT.COM I know for one installed his. A brief tutorial/write-up on the installation BTW.
2007 R1200GS Adv DMC Hack
2014 R90T Sooooooon!