I am working with a prospect who is trying to implement a new website on Magento 2 EE, with custom design, about 15 extensions, and other Default Magento configuration, content migrations etc. That said the quotes we received from few vendors is about 200 hours including everything.
Designs are highly commendable and the client is peculiar about implementing 3 designs for Desktop, Tablets and Phones and its related functionality. That said I wanted to check within the community if this is a possibility to complete the entire work in 200 hours.
Personally I think 200h is way too optimistic for EE level store. Especially when we talk about Magento 2. Sure I don't know details: requirements, developers previous experience and references, but vast majority of M2 EE projects I've been privy so far fall somewhere between 400h and 1000h