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 (:
4GB 2X2GB Memory RAM for Apple MacBook A1181 (13" 2.0GHz Black) 200pin 800MHz PC2-6400 DDR2 SO-DIMM Black Diamond Memory Module Upgrade - Walmart.com
A1181 - Charger for Apple MacBook 13 inch - MA254LL/A - MacBook1,1 - 2092 - White
MacBook Early 2008 A1181 Laptop Intel Core 2 Duo 2.1GHz 4GB RAM 320GB OS X Lion - Laptop-Masters
4GB Memory for Apple Macbook and Macbook Pro Mid/Late 2007 Early 2008 Ram A1226 A1229 A1181 MA897LL/A MA896LL MA895LL MC240LL/A MB881LL/A MB404LL/A MB403LL/A MB402LL/A MB063LL/B MB062LL/B MB061LL/B at Amazon.com
Apple A1181 MacBook 13.3" Laptop with Intel Core 2 Duo 2.0GHz 2GB RAM 120GB HDD | eBay
MacBook A1181 - intel - 4GB Ram - 250GB HDD - 2.4GHz - Apple logo Light - PSERO Laptop
How to Upgrade MacBook RAM: White/Black, A1181: EveryMac.com
How to Upgrade & Install RAM on Apple Macbook A1181 - YouTube
4 In 1 Combo Offers, Apple MacBook A1181, Intel Core 2 Duo, 2GB Ram, 160GB Hard Disk, 13.3-Inch, Portable USB LED Lamp For Power Bank, HBQ I7S Twins Wireless Bluetooth Mini Dual