osCommerce to WooCommerce Data Migration Plugin

I need someone to build a plugin to import data from osCommerce to WooCommerce. 1. Categories, Manufacturers and Products Notes: • osCommerce Product Model Number maps to WooCommerce SKU. Import and re-import needs to assume osCommerce Model Numbers are used. If SKU already exists you would update not add. . Manufacturers are not default to WooCommerce. There is a Brand plugin that has to be installed first. Manufacturers would need to map to Brand. •Product, Category and Manufacturer Images need to be copied over to Woocommerce Image folders • Category, Manufacturer, Product Extra Fields have to be catered for. We would customize this for each conversion but it needs to be clear where in the code it is done. Up to 6 fields per entity. •In osCommerce, the Product is assigned to the lowest level Category in the tree. In WooCommerce it needs to be assigned to all categories (parents) in the path. For example, if a product is in Jewelry > Earrings in osCommerce it would just be in Earrings. In WooCommerce it would need to be in Jewelry and Earrings. 2. Customers + Orders Notes: • Can be duplicates in email addresses in osCommerce. So need to merge accounts - meaning if customer already exists with that email address then orders would be linked to the existing customer • need to convert passwords • Customer and Orders can have extra fields too so again need to cater for up to 6 extra fields. •Tax setup needs to be imported. •WooCommerce comes with standard Order Status so we need to be able to map osCommerce status to Woo Status as part of upload. Need to be able to re-run. So need an option to clear data first or just add new data.