hi buddy!
see, the early paratrooper's uniforms have 2 buttons on the flap of the pocket (the 4 ones in the jacket and the other 2 in the trousers) that means that if the soldiers you are trying to convert have 4 pockets on ther jacket and 2 in the trousers, you can convert them very easily!
you just have to do the 2 buttons and remove the original one in the center.
that means, as far as i know, the set of the 2nd armored division is very easy to convert!
you also have to make the straps over the leg pockets (you may take as example the set of the screaming eagles in normandy by dragon)
the last step is painting them in beige tones, instead of the OD green!
if some other out there have other information, please just correct me!
I wold love to see some pictures from your figures in the future; I'm also making an airborne diorama!
Excuse for my english, Im form Argentina.
cheeers
Octavio