Hey Pedro, Looking good buddy!! Hey I understand the purpose of making all the interior parts smooth, filling in dings and imperfections, and fitting everything all together, I did the same thing for sure!, But what was your purpose of primering all the parts when they are just going to be covered in leather and materials? I left mine raw because I knew that the parts were going to be sprayed with upholstery adhesive in order for the material to stick, Just curious..
Be sure to allow some gapping between the parts for when the leather and materials get folded over on them, that takes up some gap space, I learned a lesson from my parts.