Hi Sandman, I am afraid you picked applications that would not run very well on high-end 68k Amigas with graphics cards either.
Maybe a good start would be to look around in the download section at morphzone.org. As you appear to be interested in 3D applications, you might want to take a look at Blender as well Titler which run natively.
Older 3D applications that are known to work on MorphOS would be Maxon's Cinema 4D and Lightwave 5.x, but the latter might need some special configuration (preview screenmode, etc.).
