I don't think I will be getting the Calth set anytime soon, however I already had some forge world stuff I recently painted up to start heresy with some buddies. I am using only forge world and rogue trader/retro marine vehicles to ensure I have the correct mark of vehicles.
Auto/Las Pred
Some pics of most recently painted marines (before crackle base paint dried, was way too excited) and Contemptor dread (magnetized badly haha)
Group Shot
Thanks for looking,
IRON WITHIN, IRON WITHOUT!