Best suggestion: buy the reprints of the factory Body/Trim/Sealer AND the Electrical Assembly manuals and study them thoroughly for dash-related items, as well as read the instructions in the '62 T-bird shop manual. The diagrams in the assembly manuals gave the people on the assembly line step-by-step instructions on how to install components: reversing the process will allow a person to remove the trim, instruments, and ultimately the dash pad/frame.
Alan H. Tast AIA, LEED AP BD+C
Technical Director/Past President, Vintage Thunderbird Club Int'l.
Author, "Thunderbird 1955-1966" & "Thunderbird 50 Years"