XML Data Feed Integration on Shopify

I need an XML data feed integration on my Shopify store located at bulletbarnammo.com. The integration should be in line with the specifications of ammoseek.com/xml.

The XML feed should include:
- Product prices
- Stock availability
- Product descriptions

The integration also needs to filter:
- By product category
- By price range
- By stock levels

Additionally, I require that the system sends email notifications in the event of errors or exceptions during the integration process.

Ideal candidates for this project should have:
- Extensive experience with Shopify and XML
- Proven track record in data feed integrations
- Ability to implement filters and custom error handling
- Excellent communication skills for updates and notifications.