Well, the car have a lot of rust covered with car filler... so I think I´m at the moment to make a complete restoration; I don´t want a museum car; I want a good bodywork to have a car without problems in the future :_)Good work - it really is not so bad.
Like others have said - you have to choose which way to go
Repair what you find/see and then drive and enjoy it
go for a full restoration
I think even on a really nice GT that has been regularly driven - if you go digging you will find plenty rust (rust that may not otherwise have surfaced for a good few years, whilst you were enjoying it).