I have a slightly used Kawasaki Lo-Gel Seat 30M low with only 200 miles on it on last Sunday's Ride, paid 616.00 plus shipping. 

One set of slightly used Muzzy Lowering links...paid 70.00 plus shipping.  Have $686.00 invested in both accessories

Package Deal for both units which will lower the rear about 3 inches for a short inseam rider.....$500.00.  UPS shipping on a seat is usually $25.00.

Ninja

Might be a bit high on the asking price...  The Kawa Lo-Gel seat can get had new on Ebay for $450... 

http://cgi.ebay.com/ebaymotors/New-OEM-Kawasaki-Concours-14-Low-Gel-Seat-08-10-/120740851184?pt=Motorcycles_Parts_Accessories&hash=item1c1cb72df0#ht_754wt_1166

Aaron