The wheel base is the same so the skirts will fit.
You can spray them your self but it will never look as good as if you took it to an auto body guy to spray. As the saying goes, "you get what you pay for".
Price seems reasonable. I would offer him $200 and see where it goes. Make sure the side skirts come with the end caps.
'14 Tuxedo Black ST3
'13 Ingot Silver Escape Titanium AWD
'04 CD Silver SVT, #877, 1 of 135 May 2011 ROTM, FF11: Best Display, Best of Show; AFN12: Best SVT, Best Audio, Finest Five, Carlisle Nifty Fifty