Wholesaler inventory/sales/purchasing system

This is a complete replacement of the backend system of a wholesaler. The attached spec is not yet complete (whether or not this project goes ahead depends on the cost), so at this stage I'm looking for proposals with indicative time/cost. Please be detailed in your proposal - I'm interested in working with people who are willing to put some serious thought into the project at this stage. I'd be particularly interested in examples of previous similar work. I've left the maximum bid open in order to get a feel for what it would take to do this job properly. In particular, your testing will need to be done in-house.. I want to avoid the usual cycle of delivery-bugreport-delivery-bugreport. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform To be specified by coder.