get an age verification certificate of the VIN from a Ford club thats on the DVLA list of clubs they accept, and you will get an age related plate, its what i have to do to get an age related plate for cars i import that don't list a year of first reg or build on the log book i get with car from some countries.

this should be the link to the DVLA List https://www.gov.uk/government/public...le-owner-clubs