Don’t hate me but these are the EVs I’d recommend you look at if you came to me asking for suitable ones within a £350 budget:
Citroen C3/C3 Aircross £0
Toyota Urban Cruiser £0
Mini Monochrome £0
KIA EV4 GT Line (why wouldn’t you upgrade for no cost?) £0
Skoda Enyaq SE L £77
KIA EV3 Air £327
I’d put money you could get the JEEP Avenger within budget as well, the Research Garage Group post a lot of offers, they’re in Coventry if that’s achievable for you?
I'm Autistic, if I say something you find offensive, please let me know, I can guarantee it was unintentional.
I'll try to give my honest opinion but am always open to learning.
Mark