There is a few options I will start at the top with my favorite to least the least isn't that bad!
Tekin T8 1900kv and RX8 = Can get in UK from RCDisco
LRP Dynamic 1700kv with iX8 esc = Can get from SMD Direct
Hobbywing 1800kv with Hobbywing 150A Speedo = Can get from Hong Kong on eBay