Man that's the rough not being able to work on your project truck that's supposed to be fun. I'm actually finally buying and picking up my A model project in the next couple of weeks. Little bit of sentimental value with mine it is/was the transport truck that I rode around with my old man in when I was a kid. For the resto-mod project I've got in mind for it it's likely not going to even get started on for a couple of years, but it's pretty neat to have the exact first truck that I rode in and got me hooked on this as a line of work!
All goes to plan I should have the new firewall in over May long weekend. Then I'll work on ripping the back wall off.