In terms of hardware, The tesla gen 3 one is by far the best bang for buck, assuming you don't need any smarts (load shedding, solar monitoring etc).

its a 22kW unit, but most of this sort of stuff has the ability for the electrician to dial this back internally if needed. 

(Gen 3 with the right setting will work with any type 2 EV, unlike the Gen2)

https://shop.tesla.com/en_nz/product/gen-3-wall-connector---7_3m

https://www.tesla.com/sites/default/files/support/charging/Gen3_WallConnector_Installation_Manual_AU_NZ.pdf

Has built in RCD & DC leakage protection which should avoid the need for an expensive type B RCD on your power board.