Wanted - Samsung Galaxy S2 with Android 2.3.3 in London, Essex for sale

Phones

I am looking for a working Galaxy S2 with Android 2.3.3. Baseband version I9100XXKE7. Build Number GINGERBREAD.XWKF3.
It has to have these details which can be found under Settings - About Phone.
I am willing to pay a good price depending on its condition. £150-300
Thanks.