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.
I love the WL Toys 144001 1/14 scale RC Buggy and have written a lot of articles on tuning and upgrading it here. It is inexpensive and runs well stock or is easily upgraded to brushless power which offers better speed and acceleration as well as battery life. But how does it compare against the car on which is was based, the LC racing EMB series on which the 144001 was (let's face it) copied from?
So surely you know by now that the 144001 is a budget copy of the LC racing EMB-1 but with a bigger brushless 550 motor and integrated ESC/receiver and no slipper clutch. This means that WL Toys have been able to grab a big slice of the popular RC car market at a price point of $70-80 for the 144001 vs $200ish for the LC racing equivalent. But this is clearly not a fair comparison so what if you take the brushless upgraded 144001 with a raft of replacement parts, tally up the cost and then compare? Would you still buy the 144001 to upgrade or would you just got straight for the LC racing? I'll break this down by price and performance in order to give you the clearest information to make this decision for yourself and my opinion I what I would (and did) do.