thanks Rodeobob. The mini will never be sold. "i dont know if it will ever be finished".
I salavaged the old height adjuster gears and welded them on to the shafts.
I did draw them up on Autocad and was going to make them out of stainless but i thought because they are inside the housing well lubricated it would be ok.
Stainless is good for corosion but is not good for wearing or very strong for the gears. the axles wont be doing much work because it will be a show piece.