Some more info on aircraft only.
401 Gladiator IIA - Gladiator I were bought (not IIA) and only in 1/38 they were assembled and ready (now 6/37), according to a Polish article on fighters in China (ordered in 8/37).
An important aircraft, used since 1933, was
Hawk II
http://surfcity.kund.dalnet.se/hawk_china.htm - and it reportedly could carry bombs
https://en.wikipedia.org/wiki/Curtiss_F11C_Goshawk
Best photo I could find is here
http://hartmann.valka.cz/panzergener...id=146&lang=en
There was also Hawk III, with retracting undercarriage, but it might be not much difference from Hawk II, while it's available later.
406 Polikarpv I-152 - correct designation is I-15 bis. It could even carry 2x50kg bombs.
As for 413, searching of P39 Airacobra + China in google shows no results - while there always can be found color drawings of other Chinese aircraft... Unless this is US air support.
418, 419 P-38 Lightning - the Chinese had some P-38, but a positive information is only about reconnaissance F-5s
http://wpalette.com/en/pictures/56780
Osprey - Aircam Aviation Series n°10 - LOCKHEED P-38 LIGHTNING IN USAAF-FRENCH-ITALIAN-CHINESE NATIONALIST SERVICE unfortunately doesn't clear things at all, apart from providing photos of F-5s.
If they are American Lightnings, they appeared into China-Burma theatre in 9/43 only, according to Osprey.
433 B-25b Mitchell - photo is late US gunship version. A nice Chinese is
http://www.sfahistory.org/ChineseB25.jpg
This time that's all.