Right, I'am determined to make Legion Upgrade Despoiler Squads for my Traitor Legions without breaking the bank. In order to get the parts I am going to opt for a squad of Chaos marines and I already have a lot of parts anyway. But an interesting thought occurred to me...
If I take the full resin upgrade, this replaces the chest, shoulders and helmet for the entire model.
I will also be using the plastic chaos marine or spare bits from mark 4/3 for my arms and weapons. I can scour some more overt chaos iconography off although since they are older models its quite subdued anyway.
Since it appears in artwork, I can also use the chaos marine backpack. Again, suitably scoured of more overt chaos stuff.
So unless I am missing something, the only thing I actually need from the plastic mark 4 kit is the legs?
Would it be acceptable to pass the legs off as mark 6/modified mark 4. Would the models still be recognizably heresy if I got all the resin parts? I mean literally, I would be paying £30 for ten sets of legs and throwing the rest of the kit out.