POTF MOC's

Hi Guys struggling to find out roughly how much the following MOC's are worth. Limited stocks on EBAY.

92 Back POTF - Darth Vader - MOC Excellent condition
92 Back POTF - Stormtrooper - MOC Excellent Condition
AFA 85 Graded ROTJ - Luke Skywalker Farmboy MOC (Palitoy)
ROTJ - Chief Chirpa - MOC (Palitoy)
Star Wars - Patrol Dewback Collectors Series - MISB
Tri Logo Yak Face - MOC - Excellent Condition

Any help would be very much appreciated!

Regards, Chris. 8)

92 Back POTF - Darth Vader - MOC Excellent condition -------------------------------- $200-250?
92 Back POTF - Stormtrooper - MOC Excellent Condition --------------------------------- $140-160
AFA 85 Graded ROTJ - Luke Skywalker Farmboy MOC (Palitoy) ----------------------------- (Don't know prices for AFA)
ROTJ - Chief Chirpa - MOC (Palitoy) ------------------------------ $50 -70
Star Wars - Patrol Dewback Collectors Series - MISB ------------------------ $300 + ? (Really not sure on this)
Tri Logo Yak Face - MOC - Excellent Condition -------------------------- $400+