DIY lighting for passenger cars

I've been doing some research on how to add lighting to passenger cars. I'm working on adding lighting to my Z24500 Nord-Pas-de-Calais and I'm not fully satisfied. Here's what I've found so far:

• https://brochard-yves.pagesperso-orange.fr
  
• LS Models - Corail cars - here
• LS Models - I11 cars - here
• Vitrains - VB2N cars - here

The required materials seem to be quite easy to get:

• List
• LED strips from here or here
• Power pickup - here