As we all know by now the WL Toys 144001 (and 124018 / 124019 by extension) is a budget copy of LC Racing EMB-1 that utilises cheaper materials and electrical components to make it a lower cost offering. LC Racing spares for the EMB series are surprisingly cheap - often cheaper than the WL toys parts. In the list below I've made it clear which parts are a direct fit and which parts will fit with a little modification.
Link below are to the AliExpress store that I trust - they have been running successfully for over 7 years and will ship worldwide. You may of course have other options locally like Troy Remy in Canada (find him in the QuadifyRC Group), Warren RC in USA, RCMart out of Hong Kong and direct from LC Racing themselves.
Wheels and Tyres
If you are reading this I haven't finished this article yet, more to follow as I find the time!