just wondering if any one out there have done this and if so difficulty involved in grafting a ba falcon dash board into an e seires falcon, in going to run the dash and centre console but have custom sterio and climate control etc just need help with the skeleton of the dash first

yes it can be done,
there is alot of mucking around involved.

four4 or something along those lines has done it
have a look around before asking questions, it'll save you time.