Since many people travel to Malaysia for business or pleasure, AND since I came across this information on the other forum that I help run, here is a link for CAR folks.
http://rcqatar.com/cars/rc-car-from-kl-malaysia/msg1043/#msg1043I am quoting the most important part below, but there is more information in that thread including names of personnel.
tamiya underground at 1utama damansara -
david 0162478803 tamiya stuff
myrcstation in klang
0173326296 cheap bargain
rcsmart at amcorp mall PJ
0127810280 lipo battery cheapest in town
RCC at glenmarie shah alam -
sam 0123185991 buggy stuff and touring stuff also got track at shop
RCMOD
0168607710
baja stuff cheap price too
to many to list out la bro
Let me see if I can gleam out some first hand plane/heli shop information too.