Hey Ben! Welcome, from one newbie to another.
How's the search going so far?
(Not that I'm any expert), but I would make one thread. Then you could make a post for each parcel under consideration, and edit the first post to keep the 'current front runner' up top? Just my thoughts.
Have you seen this thtread on evaluating land?
https://permies.com/t/46594/permaculture-projects/Quest-Land-advice-permies-homesteaders
One nice tidbit I took away was looking for plenty of weeds growing on the property, as a signal of the absence of broadleaf herbicide.