What has to be original with an H approval

Hello I would like to carry out the H-approval with my MX 5. They are: 1. black headlights ( Golf2 accessories) 2. leather seats 2 years ago by the saddler. But the original seats are only re-upholstered and covered. 3. black indicators front 4. aluminium rims make “RC ” in 16″ with tyres 215x45x16 5. roadster bar with wind bulkhead. 6. an Alpine CD radio mounted. The rest is original! The car has never been welded and has a new car character. rsprung back equip or goes through the H- decrease so. Kind regards