Bid is for an off-the-shelf free shopping cart application, installation, configuration and setup of paypal standard (paypal IPN would be an additional 20).
I've had experiance with the store application for some time and it's fairly easy to administrate and run. All product entry and configuration will be your responsibility. Bid is just for configuration, installation and paypal config. (BTW, it also supports Western Union which if needed, will also be configured - wasn't sure by your description).
Let me know if you have any questions...
Thanks,
- Craig Taylor