I've seen them recently on eBay, but they're not there all the time.
Be careful with mirror covers for 2005-2007 models. 2001 and early 2002 Escapes had mirrors with much larger mounts than the mirrors that were used from late 2002 to the end of the 2007 models. There were UK chrome mirror covers that fit the early mirrors, since those large-mount mirrors were used on UK Mavericks for their entire model run of 2001-2004, but they're for right-drive models only, so they won't fit any North American E/M/T. And the rest of the mirror covers for 2005-2007 models were made of cheap plastic with huge, visible seams.
Your best bet would be to find a pair of the chrome mirrors (which include cool amber LED side-repeater lamps and optional power folding) for 2007 and newer Escapes sent to the
Phillippines, which is one of the only left-drive (like North America) markets for the Asian Escape. Left-drive is important, since the mirror angles on each side of the car are different in right- and left-drive models, in addition to the convex mirror on the passenger side.
http://www.autoindustriya.com/tested/id/65/ shows a 2007 model with the painted version of those mirrors.
Take a look at the eBay Phillippines site. You'll find these mirrors there fairly often (this auction is for aftermarket painted versions, but it's just an example):
http://tinyurl.com/9afqwk