There are a couple of parts/features that I was not able to include on the LDRAW model:

(1)  The rear landing gear consists of the following part - the minifig zip-line handle.   It attaches to the clip on the underside of the tail, and is bent backwards.
	http://www.peeron.com/inv/parts/x76 .  

(2)  The landing gear wheels are those new funky Jack Stone Wheels/Tyres:
	http://www.peeron.com/inv/parts/x265
	http://www.peeron.com/inv/parts/x266

(3)  There is a short line of string that attaches from the top of the tail to the top of the radio antenna just behind the cockpit:
	http://www.peeron.com/inv/parts/x127

(4)  There are also some landing-gear covers.  I used square clip-on roadsign pieces in dark grey:
	http://www.peeron.com/inv/parts/470