well, since 2008 isn't that old, you should start with contacting Dutchmen's parts dept. and see what they can do.
they may want you to go thru an Aerolite or Dutchmen dealer though, to order the doors.
some people have constructed their own doors but it takes a lot of construction skills.
same thing goes with installing the replacement doors, either have a Cub or Kodiak dealer do it or if you have the skills, install them yourself.
where did you look to find them? you're not going to find them at just any RV place. and the Cub/Kodiak hybrids had bunk doors cut different than other brands.
i also suggest posting the same question on forums that are dedicated to Hybrids, like Hybrid Explorer or RV.net's Hybrid forum.
this is not a very active forum for Hybrids.