Yeah I'm fine with going with a total jump to 1.16.2.
We had a thread some years ago where nether portal coords were jotted down, so I'm sure we can dig that back up and improv the rest. Creative mode for a week or so would be greatly appreciated, as the new Nether hub may take some to build given our weird Covid schedules.
[edit]:
MC: Nether Hub 2.0 < the thread where we catalogued a bunch of portal coords.