I've spent my lunchtimes this last week reading through the 20 pages of this thread.
I can remember seeing those panels on ebay and passing quickly on to the next ad.
congratulations on having the vision to see the potential and the ability to produce such fantastic looking car.
With reference to what number plates are given to kit cars there is currently a points based system if you are not using a chassis the same as the donor car.
as far as i Know if the car was issued with a Q plate you cannot change it but if, as your car appears to have, you have an age related plate you should be able to fit a personalised plate, but it would have to be a reflective background
Hopefully this DVLA leaflet expains the poinst system, see sections 2 & 3
https://www.whatdotheyknow.com/reque...ch/2/INF26.pdf