Regarding dropping the pan without pulling the motor, a lot of work but best long term solution. These are a couple of links I found for your info.
https://www.fordbarn.com/forum/showp...1&postcount=10
https://www.hotrodders.com/forum/rem...an-219576.html
and this post by tbirdhandyman:
https://www.earlyfordv8.org/forum/pr...=18&Topic=3601
Not sure if mentioned in the above links, but removing the drag and tie rods will probably be required too. Jacking the motor up with the spacers will allow tight access to replacing the front main seal. Timing cover would have to be pulled too for the seal replacement.