>>23586294
Some sources also heavily hint that the Rick Dias descends from the GP02's body structure, which is the other possible lineage.

http://www.mechatalk.net/viewtopic.php?p=240612
>It's mentioned in the MG Rick Dias kit manual that the Rick Dias was developed using a pre-existing Federation frame. In itself, that's a little vague, but spinoff publications like Anaheim Journal have seized on this hint to claim that the Rick Dias was literally based on the frame of the GP02A.
>The development chart in [Entertainment Bible] 46 also links the GP02A to the Prototype Rick Dias, which of course leads to the Rick Dias.
>* From the Mobile Suit in Action figure data sheet: "The Rick Dias is a machine descended from the Gundam and Dom, and it's said that it also inherits technology from the mysterious GP series."
>* A little more specifically, from the recent "Encyclopedia of Gundam": " The Rick Dias secretly incorporated knowhow obtained from the Gundam Unit 2 of the deleted Gundam Development Project."