Not sure what LC racing 1/14 buggy call in HK (Schumacher in Europe, Tacon in US) that is one best mini buggy, (make sure u can get parts)
It looks like mini 8, just better (improve) on all areas.
For 1/18, I still like the Xray M18/N18 series most.
It is difficult to purchase part in HK about mini scale (except Tamiya or Yomoko). The best choice may be Traxxas mini scale.
They are available in RCMart.