Maybe you can write to Sedo to check if they can customised the site for you with the keywords you desired to optimised.
I understand namedrive.com can help you create customised park domain.
You can also read the namedrive.com FAQ for domain parking.
How are the ads targeted?
Companies who pay to advertise on the Internet allocate certain advertising Keywords to their listings. This means that their advertisements will only appear in certain contexts to guarantee that they are only seen by their target audience.
To ensure that targeted ads appear on your parked domains, we assign your domains keywords which are relevant to the domain names and correspond to the keywords set by online advertisers. This ensures that the advertisements which appear on your domains are relevant to the visitors' requirements.
Hope this helps.
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Malaysia Domain Name Blog
www.malaysiadomainname.com
