I need help with themes and plug ins - ARGH! I just don't want a cookie cutter site!

A list of needs - Fully responsive
password protected client proofing galleries - the ability to proof and order prints within the gallery - custom price list

video backgrounds -

booking / availability calender - email responses

marketing campaigns

E-commerce for fine art prints - password protected galleries - abandoned cart engagements

view dimension of art on an image of clients wall they upload -

does someone know where
i can get this?

You might find some of this as a starter but you won’t get all that out of the box and will require custom work

If you have a realistic budget then check out www.studio.envato.com