From what I recalled white was not introduced the year that model was made. The bike is a Gios, however it is not a Professional.
1. Decals are incorrect.
2. Professional has an internal cable
3. Interesting variation, all super records had just water bottles on the down tube, yours has it on the seat tube.
4. I think this is a normal variant.
5. Should be blue so its a re-spray more than likely.
6. Fork Coins seem original
7. I will go with a super record built by the other brother.