As someone who has dealt with Copyright Infringement, IP and 'Passing Off' claims within the London Insurance Market, I find this all very sad...
I can see where both parties are coming from (as per the thread comments) and can tell you the only winners will be in the solicitors costs department.
In an ideal world AndyP57 would recognise mikmiglias skill in design and fabrication and award him the title of Southern Agent, with the opportunity to build 'Ribble' vehicles under licence for a suitably small fee.
mikmiglia would of course be free to submit improvements to the design and production of Ribble-style vehicles for an agreed fee, but as an Agent/Consultant he could also fabricate non-Ribble style vehicles which he could offer to AndyP57 or elsewhere.*
mikmiglia would therefore become Batista 'Pinin' Farina to AndyP57's 'Enzo Ferrari'...
*What constitutes a 'Ribble' / non-'Ribble' style vehicle would be open for lengthy debate...
The colour of the sky in my world is pink with blue dots...