pulling heater box?

Hi all my heater core took a crap and Ive grown this new obsession with clean engine bays. So my mission is to pull the heater box along with the pipes sticking out of the firewall. I will be welding a plate over the blower motor, and going for the clean shaven look while attempting to hide all wiring. I know some people say they have pulled the dash without pulling the windshield, most people say its impossible. So Im looking for another way around this. Any help or ideas?