cap,
heres an easy way to do the RX. since i had heard the same thing about possible heat problems i used this methed shown in the picture, its hard to see the foam UNDER the RX but its there.
i just cut a piece of foam the same the size as the RX and put it under the RX then used a zip tie to hold it in place and the annteneas (S) are run to straws that i CAed in place works well.
the straws i put a 1/8 balsa stick through and left enough stik out to glue to the frame of he plane.
EDIT = mistake i epoxied the balsa strip in not CAed it
bassman