Under £200 to tide you over – worth looking on ebay… Had to do the same when I moved in here, got a Stoves locally, £90 I think, was immaculate – a lot of folk sell on decent stuff when they get their fitted kitchens done.
OP, although it sounds like you are gonna replace the element now, I did this ^^^ (get one off ebay) when my Wife broke the glass door on our old oven.
Managed to get a fancy Kenwood double oven for £50 Buy It Now, from a bloke who’s Wife had insisted on getting a complete new kitchen because she didn’t like the one that they only had put in a few years before. He said he’d tried to persuade her to at least keep the appliances, but she wanted everything new. When he was helping me load it into the car he didn’t sound at all happy about the situation, but I got the impression his Wife wore the trousers and he just did what he was told….. 😆
We’ve had it about 4 years now & it works fine.
You can also find good deals on factory seconds; stuff with small scratches on them for 1/4 of the RRP; that kind of thing.