12 Back Luke trade for other 12 back?

[RifleSmile]

Hi

I have a Luke Farmboy 12C listed at the moment

http://www.starwarsforum.co.uk/viewtopic.php?f=4&t=28770

Would be open to fair trade for another 12 back from the following list if value in line with my Luke

Vader
Chewbacca
r2D2
C3PO

Cheers

Nicky