Magento - ERP Functionality

Magento Expert ONLY I have a Magento "Business to Business" site in development and require a Magento Expert to install/configure the following : Embedded ERP - [login to view URL] Product Return (RMA) - [login to view URL] Customer Quote - [login to view URL] Drop shipping - [login to view URL] Customer Pre-approval - [login to view URL] As you can see from the above modules I want to have a "complete" order management system from within Magento that includes all of my suppliers and purchases Any potential module conflict will need to be rectified. If you have proven experience working with any of the above then it will be beneficial. ** If you have experience with other modules that will give me similar functionality please let me know ** This is phase 2 of my project as I have already configured "Stock In The Channel" as the source for all of my website content (products, prices, stock, suppliers) Let me know if you have experience with the Stock In The Channel Plugin. Potential future work will include : Ebay Integration Ebay store Creation vTiger Synchronisation If you have read to the bottom of this project please start your reply with "BLUSH"