The bike is lowered in the pics, I have a 3 setting adjustable links for the rear swingarm for stock, 1.5 and 3 inch lowered. The front I dropped the triples and use a strap when racing, I usually drag race lowered but riding around town sometimes is ok lowered the handling lacks slightly when lowered. when I go out on the twisties usually stock ride hieght
It depends on the budget and what kind you want to get.
Do you want to mate it with stock pipe, then you'd need some fabricating done.
There are plenty on the forsale section.. if not, try your local bike nights, craigslist, or even ebay..