Picked up a Dell Precision M4800 recently and immediately hackintoshed it. Still have some minor issues to work out, but WiFi and the dGPU both work! : r/hackintosh
Precision M4800 Workstation Laptop | Dell USA
Dell Precision M4800 Simple II USB 3.0 Docking Station Port Replicator NO PSU | eBay
Axiom E-Port Plus Replicator for Dell331-7947 E-Port Plus Replicator USB 3.0 w/240-Watt Power Adapter Cord for Dell 331-7947-AX - Corporate Armor
Dell E-Port Plus Dock Station Replicator for Precision M4800 M6400 M6500 Laptop | eBay