The missile launcher looks interesting, I assume they swivel down alongside the hull.
I have been thinking about what to do with my Academy M-113 and even come close to buying a Tamiya M-113A2 today (ended up buying Lego for the kids instead) as part of what I was thinking, so this update was quite timely.
I've discussed the Australian upgrade previously so won't bother going over the end result again but the original project is worth a look for the purposes of Whiffery. The basic vehicles were pretty shagged to the point of being unsafe with inoperable hold open catches on hatches etc. (I have the scars to prove it) and needed a birthday, the original idea being a limited upgrade and life extension to get the type through the 90s and into the 2000s, improved drivetrain, running gear, firepower and protection. My former employer tendered an unsuccessful bid based on MOTS A2 and A3 components as well as various Israeli options including a RWS in place of the turret.
So what I am considering, besides modelling one of the versions I used to crew, is to do an alternative upgraded version for the Australian army, something less ambitious and more realistic than the real world travesty. An A2 / A3 upgrade with an improved T50 turret or maybe a RWS.
Then again their is always the Egyptian option, install a Bradley turret on an A2 as they did with the Egyptian Infantry Fighting Vehicle (EIFV). An Australian version could use the Delco turret as built for the LAV II in Pooraka South Australia.