Another option would be (albeit hassle), to check if someone sells a banger for £300 or so close to you with a few months of MOT left.
You’re just trying to bridge the gap to the new car, i wouldn’t care if i had to drive an awfulbox until ours gets delivered.
Prior: SEAT Ateca Xcellence Lux 1.5 TSI DSG MY19, VW Golf GTE PHEV DSG MY23
Current: Hyundai Ioniq 6 Ultimate
Next: we'll see what's available in 2028.