Thank you mate!
Absolutely - you’re dead right the stock microphone is a real brick of a thing!
It’s really simple - I’ve just taken a headset from a dirt cheap Baofeng like this:
I cut the headphone portion off so I was just left with the PTT button and the mic, and I cut that weird dual plug off and wired it up with a standard 3.5mm plug.
It weighs something like 20 grams off the top of my head, incredibly light!
I stole the idea from Adam (K6ARK) who does awesome YouTube videos (https://www.youtube.com/channel/UCiVRd1ydpJCKLFtNvPUpisg)