Found a temporary fix, it seems that LML isn't using a winrar like system to extract the file. So I close the modmanger and manually download Coastal Callouts or Ems Callouts and then locate the LML Package and manually "download" it to the modmanager using the + icon on the download section.
Probably really late to answer this for you, but I just downloaded it. You can change the skins that appear by opening the .ytd file in Open IV and search for "skins" and change whichever you'd want to default