William,
Welcome to WikiTree. I want to respond to this part of your post above: "I have absolute confidence in the fact that right now - as things are - there is a LOT of discontinuity in some dates, timelines, (on my pages) and it'll all get cleaned up on the phase after all this data entry - scan in and post all the documents, photos, etc. I have on hand."
I would encourage you to consider a different approach. Many of us have done something similar to what you're considering-- create a slew of profiles without sources with the honest intention of going back and adding sources and addressing inconsistencies. But life happens, and as a result, WikiTree has tens and in some cases hundreds of thousands of profiles without sources, without dates, without relationships.
It took me TEN YEARS to clean up the original profiles I bulk-uploaded when I first started at WikiTree. I wish I'd done it differently.
So please consider adding sources, and addressing inconsistencies as you go, not later.