It's baaaaaaaaack....
After 3+ days of it being offline, I've finally finished migrating the site. The main issue I ran into was with database migration. It turns out that it's REALLY annoying to try to move databases between SQL servers, particularly when that pesky work thing keeps coming in the middle and you're talking about multi-hours transfers of data each time you try :(
Anyway - please let me know if you notice anything weird that worked in the past - there may be something that I misconfigured on the new host and I'll need to look into it.