I think keep the descriptions simple, don't give them too many options or things to think about. Provide a pay pal buy button under each service description and a call to action like 'download my FREE working with a VA ebook' or "You may also like my book editing services <<click here>>" the link would then lead to the next service description. Do this for all your service options on your home page. Which would have an icon or image for each with short description that opens to a new page with the service details, buy button, freebie ebook and call to action or upsell for another service.
>title e.g. transcription services
>short dot point description of service
>PayPal buy button
>link to download ebook
>link to another service offering
hope that helps