I am not into pen-vapes but I have seen every item except for the oil/wax atty in this set on fasttech.com, a site that trades lots of chinese e-cig stuff. They sell those accus for 10 bucks a 2-pack, the dry herb chamber is 8 or 9 bucks and the e-liquid atty can be had for anything between 5-15 USD, depending on manufaturer. They even sell exactly the same stand, case and dabbing tool there (FT describes the material used for the dabber as "metal").
Maybe they have high quality sources that deliver excellent parts that are worth much more than the stuff sold on dubios chinese sites. Seeing as this set is sold for 99 bucks, I highly doubt it.