I have a Model A In the Project/ Build thread.
Separate the body from the frame.
I started with the frame doing a little at a time.
Go to the body and do some work there.
Main thing is to switch it up so you don't fry your brain working in just one area.
And make sure you take your time.
Measure one two three times to get it right.
I can tell from a three year project, there will be many nights scratching your head as to what to do next.
And also Remember, There are many fine people on U Tube that are going threw the same thing and can give good advise on what they came up with.