2013 Std RMK 600/800 IFS shock length?

[Sundance Kid]

Looking at picking up a couple used 2013 rental sleds, 600 x 144 and 800 x 155 and the first thing I'd do is throw away the disposable Ride FX stock IFS shocks.
I see from the part numbers that the 2011-13 800's and 2012-13 600's all use the same shock.
I'd like to know the c-c measurement and if the Walker Evans Pro shocks are the correct length. If the WE's fit I'm assuming that it's the 2011-12 version since the 2013 Pros went to a shorter shock.
Any help greatly appreciated.

 

[mountainhorse]

All the Standard PRO-Chassis RMK's have a 17.5" C-2-C extended from the factory.

The 2011 & 2012 PRO RMK's have a 17.5" C-2-C extended from the factory.

The 2013 & 2014 PRO RMK's have a 16.8" C-2-C extended from the factory because of the higher mounting point on the arms, and I believe, a very slight drop in front ride height.