I have oft thought about making a mold for these Monogram bombers, Glass nose ones, to make lead cockpits and nose gear. It had to find places to fit the weight needed. Years ago I found shredded lead and lead strips at a Hobby Town USA in Georgia. The shredded lead can be pulled in and stuffed in small crevasses the lead sheets can be cut and fitted to the curved or flat insides. You may want to think about upgrading to metal landing gear with the amount of weight it will take. I did weight an balance on KC-135s when I was int he Air Force. All weight forward of the wing and the further forward the more good it will do. I like this build. I have a shot or two of the JM-1 in a book "Carrier Air War in Original WWII Color" pretty cool.