Fortunately, Gus at has made some pretty great-looking replacement figures based on the ones he designed for the De Agostini Falcon.
In the meantime, you might also see whether anything from the also warrants an addition to your wardrobe.
Bandai has been producing many Gundam model kits for years now, along with a wide line of action figures.
The one third-party grille set the are made in layers, thereby simulating the Koolshade parts more accurately.
Bandai Gundam model kits hobby shop Malaysia online.
Assuming you're willing to shell out the cash, that is.