Think you are right about the Ki.30 ANN, see the 3rd photo down on this link. A very similar wreck.
In March 1942 there were 2 Sentai with ANNs in Burma, 27th ( Toungoo) and 31st (Phitsanulok) with 5th Air Div. ( HQ Rangoon). Rarely seen after then though some as Kamikaze.
Nick
http://www.talkingproud.us/Military/...tShotDown.html