Leather sheets requested to import to South Africa

We are looking of importing the following types of leather:
- Corrected Grain Leather, Aniline Leather, Semi-Aniline Leather, Antique Aniline Leather and Imitation Leather.
We have a upholstery business and want to import and resale leather.
We need to know the following:
- Minimum order quantities, prices and if we can maybe have samples it will help us on deciding to place an order.