Jeff, I had cut about half the pylon off in those photos, then I started working with the landing gear legs and realized the tanks would probably be close to, if not actually, dragging on the ground, so I trimmed the pylons down to almost nothing to get a higher clearance.
It may all be moot, I don't have the greatest confidence in the strength of the kit legs - I may just go ahead and make new sets that are a little taller and a lot stronger.
finsrin, I have a wide selection of drop tanks on hand thanks to the good Mr. Fontaine, and I tried some others, but these just seemed to be the right ones. Now, when I make a kerosene converter out of the other N-9M I have, I'll go with some more modern tanks...