Agree totally to
ssouthall6
But have to say, when you are using for the 116500 build the follwing: Noob basewatch with real 4130 clone (working chrono) movement and mod it with these parts from ARF: dial 116500, ceramic bezel, bracelet + clasp you have a very nice good looking watch for approx. USD 1100,- (with labor and modding works)
When you reshape the case to get a much more GEN profile and look - you are nearly perfect.
With these moddings you only can tell by a 1:1 comparsion with a Gen the difference but not on the wrist (my personnell opinion)
I would say with this you are close to 90%
But I agree with also ssouthall6 - when you are using the listed GEN parts + ARF bracelet you are very very close to GEN and I would say = perfect