Monterey on Mid 2009 MacBook 5,2. : r/BigSurPatcher
Got my A1181 09' MacBook 5,2 running a 500GB SSD, 4GB Ram, and pushed it from the max OS of El Capitan to Mojave with a patched install USB I put together (:
MacBook A1181 Early 2009 EMC 2300 - used original spareparts for Macs
13" MacBook A1181 2300 Core 2 Duo 2.0 GHz P7350 Mid 2009 MB881LL/A Mac - Part Haven
MacBook 5,2 Running MacOS Catalina : r/mac
Apple MacBook MacBook5,2 Core 2 Duo 2.13GHz OS X 10.10 Yosemite Used Japanese | eBay