ETA sized hands for 2824 movement can be sourced from Cousins in the UK, eBay sellers maybe... but many more sellers online Otto Frei or Ofrei will carry them also. Make sure you look for ones with a matching lume colour - and ideally lume of same formula e.g. Superluminova.
Alternatively if you are going to approach a watchmaker to do the swap you could ask them to source the best hands to your requirements.
Hope that helps