All good Jason; I've been guilty too often on stalling on buying things waiting for the next model to come out for fear of being stuck with some obsolete.
Aussiedigs put me on to the Quest wirefree mate wireless kit and this has worked really well so far, I know Reg Wilson has tested these out successfully too. These are about $140 - you can order them online. I got mine from Phase Technical (
https://phasetechnical.com.au/product/quest-wirefree-mate-kit/) and I know other dealers advertise them as well, support your local dealer if they have them
If you have large headphones you might want to consider an amplifier as well. My earbuds are OK without an amp but bigger headphones benefit from it. The amp I use was from eBay - a 'generic-cheap' Neoteck portable amplifier that was about $37. I know specialised amps exist on the market but I've not used them.
I tried a mates Bose noise cancelling headphones - absolutely brilliant, I've heard from others that even cheaper noise cancelling headphones (like those from Aldi) also do the job well.