Just as above really. No way we can stay in the house with two kids and a dog, but could hire essentially an office portacabin with loo and kitchenette, it comes flat packed so we could get it into the garden, and fill with our own furniture rather than being limited by a caravan. At various points we will have access to old kitchen, new utility, bathrooms etc.
It’s about a 1/4 of the cost of a 6 month rental, but I can’t find any info on anyone doing this so am I mad to be considering it?