First of all, by chance, earlier today, I happened to find your post about the young shaper known as Morden Shazoow on another forum. I found it very interesting and feel that you should continue it.
Second, I would love to play a Geneforge VR game, but I doubt it will actually be done.
Third, I have some ideas for creation sizes. The war trall and the battle alpha should be 1.5 times the size of a human. The war trall should also be fatter. Battle Betas should be slightly bigger than the battle alpha.
If you want to contact me, and bounce back ideas, add me on steam.