Indeed get what you can out of them, although the £36 on Amazon may not be type approved by your council as its not Kerbo but great if you can get a DFG grant 🙂
The Ohme home pro tethered cable can be extended from 5 to 8m at the point of installation so don’t forget to request a longer length when contacted.
I can’t help with choice of car as its a personal thing. Although I’m not a fan of all the plastic on the BZX4 and don’t discount MG’s long range ZS and 4 if your mainly local and would have a cheaper AP. The Reno Megane if its not too low.