I worked the Manhattan market for a good amount of time and if you're looking there, the top brokers are as follows:Douglas Elliman, Corcoran, Halstead, Brown Harris Stevens, Sotheby's, Citi-habitats and so on.  

.,1 percent of profits donated to Habitat for Humanity or Colorado's Bridge House.

Can you get a 'wildlife'/'natural habitat' tax break for leaving them and putting some plants and Alligators in there?  

Also check out Habitat for Humanity Restore. 

I know habitat for humanity has done a number of these projects. 

Villages have been the basic human habitat for thousands of years; it is only when economic factors require it that people choose to live either very remotely from others, or in crowded cities.The other thing that will matter is climate.  

We do a lot of craigslist and habitat sourcing for our update materials and I can't say enough about picking up display cabinet sets for affordable updates and second hand corian has given some nice islands and countertops.

They might even buy materials for you if you provide the labor and do a quality job.2) Volunteer for a local organization like Habitat for Humanity3) Find a local GC and ask if they ever need help with jobs.

If you are just doing one for now I would use Facebook marketplace, go to estate sales, and  craigslist or a Habitat for Humanity Restore. 

Maybe I will Craigslist free item them or donate to Habitat for Humanity.