You can buy these new for under $700, see link attached. I’d say yours is worth maybe half that if lucky, the embossed RUF logo is nearly invisible on yours. I think that could make it a very difficult sale.
https://www.ebay.com/itm/RUF-Black-Leather-Steering-Wheel-for-Porsche-911-964-non-airbag-models/132635663746?hash=item1ee1b39d82:g:MdIAAOSwunBbB7A A