Licensiing and support packages are confusing.
I would recommend you open an online case on the support site.
Choose the "Admin Service Request" type
It has been a couple years since I purchased home use devices, but my recollection is that you can get downloads for 30 days after a new purchase. After that you would need an active support contact. I used an admin service case to activate the access.
They should also be able to identify for you which item bundles include support. That is what you would need for ongoing access.
I purchase these SKUs from CDW online once I know what I need. Sometimes they don't have them listed but if you know the Juniper bundle needed they can get you a price.