Is the roof sound? There's something going on at the top right of the front elevation.
If it is, the obvious things to me are the lean-to/conservatory, the general decor and the kitchen.
The kitchen layout looks okay, so you might be able to get away, depending on how study the carcasses are, with replacing the doors and giving it a really good facelift, but when we priced up doing the same, with some minor alterations to fit in a dishwasher for the first time, it wasn't significantly cheaper than doing the whole thing from scratch.
Our house is a little smaller, and we paid about £2k to have every room redecorated over the space of about a fortnight when we'd been there for three months. They painted everywhere (ours is mid century so we did a white palette everywhere apart from the two adult bedrooms), skimming where required in the bedrooms, and all the woodwork and ceilings were done. It meant that every room became a blank canvas and we have been able to repaint with colour ourselves now we've lived there long enough to see it in all the seasons, yet get a good finish because the underlying walls are in a much better state.
Also, even if they're leaving window dressings, you're going to want to replace all of those, I'd think, and curtains are always more expensive than I expected to be.
Do you want / need the conservatory? It looks very dated and hard to hear.