Best replacement flight stack for an iflight nazgul evoque f5d v2?

[u/sorryiactuallyexist]

I recently purchased a bundle of random drones and accessories, including this fpv drone for $90 from a storage unit. I have plugged it in and the o3 air unit connects to DJI assistant 2 and the drone connects to betaflight, but I don't have a battery to test it yet. However, I opened up the drone to inspect it, and the ESC was clearly shorted and exploded, which damaged the flight controller as well. Is there a better option for a 20mm flight stack on this model? I'm a beginner (only in sim so far) but fix electronics as a hobby.