Ok, thanks to @PETER BEAMO for the help with the glass and Mod Support Team (@synsol ,@meywue ) for finding a typo in one of the files, which causing weird rear fender deformation with 4 link rear axle --- Post updated --- If someone know how to deal with those textures on new areas, let me know, via PM.
Ok, finished the texturing today. Big THANKS again to those who helped me (i write some credits in it's description, when the mod gets approved) I will test it over the next one or two days and hope everything works perfect, so an upload on (or before) weekend should work. I don't think i'll find something, but you never know.
Released, Download on first post! Further discussion goes here! https://www.beamng.com/threads/barstow-convertible.36589/