So I've been a bad web master and have been using EE 1.7.3 since 1.7.3 was the new hotness. I never upgraded to 2 once it became paid, nor did I update to Core. As can be expected, this is now causing problems with PHP versions and so on. So I backed up my entire website and grabbed the latest version of EE, only to find that if you're upgrading pre-3 you need to do it manually from 2.
The problem is, I cannot find a version of EE 2 anywhere to download. My original plan was to try and go from version to version so I could do a steady upgrade, but that doesn't seem to be a viable option. Are there any instructions out there on how I should go about this upgrade? I know I can't hold off forever, but I really don't want to have to start over, either.