[Seeking gray cloth passenger seat for 2002 Echo 2-door]

Hi, I'm looking for a gray cloth-upholstered passenger (right side) seat, with tracks and any other needed mounting hardware, for a 2002 Echo 2-door.  It needs to operate properly including the seat back, sliders, latches, etc. 
If you have one you'd like to sell or know of a place where old ECHOs go to die and become organ donors, please let me know. 

Thanks!

[Just joined up.]

We have a 2017 PriusV.  We've had many Toyotas previous including a 2013 Prius V, 2007 or 2008 (can't recall) and 2011 Prius sedans, two Tercel wagons, one '94 Tercel sedan, two Corolla wagons, a 2.4 liter Diesel pickup, and a 1993 Camry.  My sister has a 2002 Echo and I help her with it.