I'm afraid I can't provide fresh news this week :(
I've finished the "easy part" of the job,as I have to add new polygons now. I'm a noob in this matter... so I'm going to learn in the meantime.
The project is still ON, anyway.
Note : I noticed Alfa GT Huds (exterior views) are shared between Alfa GT class F and class E (Sporting Technical Kit). Thus applying the mod will affect Sporting speedometers and tachs. So don't worry if you shall find a Spider logo with your Alfa Coupe :)
@ Hybrid_IV : About what did Diablo warn me ? :/
I started this project to learn modding first; moreover I like this car. I found a photoshopped picture of a GT Spider (it's not a real car in fact - but that could be).
Concerning Brera Spider, sure it's' a great project but I don't think to have the required skills for the moment (I already said I was interested in it and 8C Spider, see previous posts). Imo it will be better to start from a new model than from the TDU Brera; there are many differences as you told.
Also I'm afraid to have only a little time left to make present project to its end. That's my priority.
If someone like Basbas, Tool, dmc, HierOS (good at modeling) want to do another Alfa Spider from the Coupe, I may help of course.