I have a bunch of ideas but hoping to not spend time spinning and reinventing wheels.
Could use a rowlist and add rows as the user goes down. The numbering will be incorrect. Will it be performant?
Could use a rowlist and populate nodes as the user scrolls right.
Could use various grid elements, markupGrid comes to mind, and add nodes (or populate pre-set invalid nodes?) as the user navigates?
Build a custom lazy loading grid component?
Thanks for any suggestions, tips, words of caution, encouragement; anything but hate mail.