You could try your local computer store or go on Ebay
You could get this on Ebay if you dont have an account you will need to create one. https://scgi.ebay.com/ws/eBayISAPI.dll?RegisterEnterInfo Add Email adress Add Bank Acc Add Credit Card also Add your Postal Adress also Add a PayPal account. Click on the Ebay tab on top of page from the drop down list you will see specific pages. On left hand side on Ebay summary page you will see the PayPal link. when you get to the PayPal login page at the bottom you will see new to paypal sign up tab. Paypal to create an account PayPal registration password ,bank card /credit card,phone numbers home/mobile ,email adress and a Postal Adress. Be very specific when you type in the search. Always ask questions? before you make a purchase and keep the email/s for security reasons if the item arrives and its not as described. You will even see the pictures of your item so you cant make a mistake and get them home delivered.
If you need more help locating one post a reply with the fan model number details
Hope this helps.