Good to see a new Type-T poster on the thread.
If by wheel wobble you mean the play on the inside wheel when the steering is locked, Seaball helped me with this one. It's all to do with the angle the steering links are at.
For minimum wobble avoid an extreme angle so keep the suspension mounts in the standard position and use the outside holes on the hubs. I'll have a browse through your folder when I'm not at work.