Convert & Configure Cisco AP

I have a single Cisco Aironet AIR-AP1832I-D-K9 that is still running in lightweight CAPWAP mode on firmware 8.5.120.0. The goal is to re-image it to Mobility Express so it can operate as a standalone controller, then create one office-ready SSID secured with WPA3... (Budget: ₹600 - ₹1500 INR, Jobs: Cisco, Electronics, Network Administration, Network Security, PCB Layout, Technical Support, Troubleshooting, Wireless)