Hey there. Go ahead and send the compset you're looking at. This is up our alley. We've built custom ecommerce platforms from the ground up for Volkswagen, build internal apps for companies and all sorts of crazy things.
We're definitely the company that can do this. We can handle design, and development, just development, online marketing, whatever. We've got this. The only problem I foresee is budget. Either 1. You don't realize the nature of the beast and how much time this is going to take, or how projects like this can often be Pandoras box, and all the contents inside are more Pandoras boxes.. 2. You do realize how much this will take, but you're looking for an indian company. Which let me tell you, will end up being a waste of time and likely end up with an unusable product.
Anyways - i think I have a lot of insight to offer. Let's chat