Didn’t say you had to jusitfy it, you obviosuly don’t mind paying that kind of money to sove the problem. myself, i would of bought the volume space reducer kit for the high volume can and fettled with it to get it right.
as above, i really can’t see there being that much deiifrence between a 2012 and a 2013 rear shock in turns of damping, other than the CTD switch.