Magento Editing Work - open to bidding

We are a startup firm who is dealing with different Vendors for shipping of the [login to view URL] we are using Magento 1.9.1 in which we are using Bulk Order Plugin purchased from Amasty. Now we want to add more Vendors but dealing with them is creating Problems for us, since , some Orders comes with Books of two vendo5s , which we are unable to edit. Now we searched for different plugins like [login to view URL] This plugin features are satisfying our needs, but it is not providing features Bulk Order Processing from Supplier Login.(eg. Invoicing option by ticking all Orders at a time) So we want you to either link this Plugin with the Amasty Bulk Order Processing Or provide us the Complete solution - Multiple Vendors, Automatic splitting [login to view URL] have not Purchased this Ultimate Dropship Plugin, So its open to you if you want to work fresh according to our needs, Or we can purchase this Plugin , then you can edit, Or you can tell any other plugin, that you want us to purchase. No Multi Vendor Plugin currently we are using, We only using Amasty's Bulk Order Processing but it doesn't have option to split Invoice