DFS-230, Crete, which variant?

Hello,

So I’ve been inspired by our recent holiday in Crete to build a few models from the Crete campaign. I’ve got a couple of decal sheets already that cover RAF aircraft and I’ve got Airfix’s reissued Do17 on the way.
No collection though would be complete without a DFS-230 glider, which was so iconic of the invasion.
But the question is which version? Looking around Huma did the A, Bronco do the B and RS the C. Google really hasn’t turned up much conclusive (besides from the oop DP Casper sheet featuring LB+1-91. This is a decal option in the RS kit but dated 1943, so I’m unsure if this is a reused serial on a later glider. DP Casper is vague on the variant ). Besides from a few blurry and staged photos, I’ve got little in my references.

Any help would be greatly appreciated.