@Jupp3
When I am using VBOs or vertex arrays, I have to redesign data structures a lot.
At the moment I am facing two problems:

1. I need access to the complete model for glTranslate etc.
2. I have to spilt the model and draw the parts of the models to set the materials and normals.

I will thing about it and redesign my data structures.
First I will switch to Display Lists and Vertex Arrays, because as far as I know not all amiga systems
support VBOs at the moment. Am I right?