High Sierra Stuck at 2 Minutes Remaining

We got your email before it was deleted that you were running something out of the specs of the computer you have.

Sadly those methods basically leave your computer vulnerable to kernel panics and poor system performance and as well as systems that are notoriously difficult to upgrade.

In the future when playing on the bleading edge, always keep a clone backup that you verify can boot. Those are easiest to recover from. Installing an older operating system while running a newer one is very difficult.

Internet recovery makes that available on erase and install, but that's technically the only way to do that. If you have another Mac running High Sierra or older, you can create a High Sierra installer for yourself.

Are you running High Sierra or earlier on the Mac that you are using to make the install?

How long has it been, I've had less than a minute remaining take an hour more than once.