Blimey that's a hell of a mark up for a largely cosmetic job. Apart from new boiler/heating and a bit of boxing in cupboarding around the boiler. It's all just clean and paint. Same kitchen cupboards, same bathroom suite. Oh, new worktop, oven and hob.
I'd want to be very sure the mould was dealt with, but decent heating might do that.
But I wouldn't buy it because I don't think you can stand up for a decent shower.
Credit where due, it's been done well, but thats a whopping profit margin.