I personally wouldn’t buy one at the moment, it’s pretty easy to spend another couple of hundred pounds putting one right. Due to the current boom in cycling and shortage of bikes, the prices are completely bonkers.
Firstly, I'd like to point out I have no affiliation with kingfrank7, I'm of the Crank tribe. Prices in general over on the bay have gone silly of late, but Brommies are truly bonkers. They have far exceeded the Raleigh Chopper nonsense, and that's saying something - best to bide your time and let things get back to normal.