Hello,
My name is Janos and I'd like to help you on this. Thanks for the description, it gives a high-level overview of what you are trying to achieve and I can deliver this within apx 45 days. I've placed an indicative bid, in order for me to be able to confirm my bid time and cost and be able to get started with development, we should discuss in detail.
Please can you contact me via the freelancer chat to discuss?
About: I have over 12 years of experience with .net & SQL development from both a corporate life (in the last 10 years I was leading development for SEWS-CE a major automotive company's bespoke ERP, MRP & EDI systems) as well as freelancing - please see my previous works here on freelancer for references. I have 2 other developers I work with, so a team of 3 and we can tackle any .net development including projects of this complexity, taking you through the entire process from requirements analysis, scoping, carrying out development, going live and providing support and continued development at any time.
I look forward to working with you on this interesting project!
Kind regards,
Janos