For a teaching environment, plastic fumes need to be addressed. While things like HDPE are more benign, there are still fumes. There is some info here http://onearmy.world/community/forums/topic/v4-fume-extraction-4/ . If you can do the hot processes outdoors, that would be a great start. You might contact the team at Monash university to see what regulations they had to deal with. I would guess you will need to go through some general safety reviews in implementing you project.
Unfortunately, while there have been a number of people with questions about starting education programs, they often don’t come back to the forum to share their experience.