It would be possible to link Blitz3dsdk with A7, but I dont see any use of doing so. You would be using the blitz specific 3d engine features and not A7 3d engine. Its of use only, if you want to use Lite-C language for programming your game. You cant use A7 + Blitz3d features in your same game. They are different engines and both cant be given access to your drawing canvas, the game view. So practically it is useless to endeavor on such thought. You just wait for Blitz3d 2.0 and its unique features. As far as A7 is concerned, the feature you seek has been denied by conitec and wont be implemented. Maybe its too much of complications for A7. And more over Disk space is not that great concern now-a-days.