Hi Guys,
In recent contact with Team Azarashi I was informed that they have designed a modification for the KMRC chassis kit (mainly servo size) to allow there or even maybe the Keen Hawks body to fit without body modification.
Here is the links.
http://www.team-azarashi.com/DF03kmckumitatehen.html
http://www.team-azarashi.com/photoxeneigaenglish.html
(webpage translation maybe needed)
I asked about an undertray I saw in the link and they said it will not be for sale but gave instructions on making one, dissapointing really as I would be the first to buy one if they had a ready made one available.
Anyway hope this info helps.
omen1975
P.S. Great review on the 501X Jimmy, well done.