Auto Modification Materials Import Companies List

We are a dubai based company working with 4x4 modifications, off road, ambulances and handi capped. We just received an order for modification of fiat panel van. The end user want to change the panel van to passenger van. If you can help me with below points. 1. Roof sealing (plastic with and option of 3 inside light) 2. 12 Seats with high back rest 3. 2 Glass one on each side with sliding option 4. Flooring ready mate 5. A/c