I have checked Barnesy Ju52 reworking.
As he states himself clearly this is only a reworking of the paratrooper version.
As a matter of fact his mod cancels all the other versions in the Ju52 pack.
Here're his statements on this mod:
No bombs, no cargo, no staff, generals, civilian transport ,no other stuff - just paras is what these are made for.
Sooo if you want all the other stuff sorry these are probably not for you stick to the other 52 mods
There is only the one para as a whole plane load would be a gazillion polys
also getting them to disappear one by one as they jump is a little beyond my java skills to put it mildly
the para is actually the pilot 4 in the plane so when everyone bails so does he
no class files
no new cockpit
no new parts hidden in cockpit view
no opening doors
no door removed when paras loaded
no landing light fold down etc"
As far as i can see the modifications he introduced are a reworking of the Engine nacelles and wheels in Hi-Poly, adding an opening front right door, a newinterior (windows, curtains and seats) and a high-poly German Paratrooper figure standing at the main door.
He did not use the Paratroopers mod has he has a problem with it on his installation.