ScanDeps.pm sounds like something that is supposed to scan a Perl source file for dependencies. I don't have any ideas about why this doesn't work with "-M Image::File::RandomAccess", but this line is likely unnecessary anyway since the automatic dependency scanning should find this one. (Most of the other modules are loaded dynamically, so I don't trust the automatic dependency logic for these. And just for completeness I added -M options for all modules to be safe.)

Take a look at the unpacked files in the temporary directory after running your version to see why it is larger. My guess is that either some included standard library modules are larger, or your version includes library modules that mine doesn't.

- Phil