The error messages say nothing about a 747 path. It would never be found anyway since I have no 747 installed. I went back and read the product description, minimum requirements, and installation instructions, and the only thing I found about a 747 was a line in the cockpit description saying...
"• Essential functionality paired with default 747 systems simulation".

I take it that was my instruction to install a 747 in MSFS. Clear as mud to me, but I'll follow your "Instruction" and see how it goes.