Thanks. I hadn't seen that, but that's pretty much what I ended up implementing - except that I want info about collector id and collector description to be available to the rest of my provisioning system, so I do all the parts other than downloading and running the installer within terraform templates/modules via provisioners and data sources which run local python scripts, and then the id is passed to the ec2 instance, which then runs a script to download the installer for that collector id and runs it. I'll eventually post a blog entry about it, but I've got too much on my plate to document it in full just yet.
