Rigging Up Temporary Accomodation - Hot Water ?

[Renovation]

I've exchanged and have to move out of my house in 3 weeks, my renovation is no where near ready due to trades not turning up claiming everything from family deaths, sickness etc

I'm considering a Static in the garden but the other option is to "camp" in the house - some rooms are plastered and have power.

I'm thinking electric heaters in the bedrooms, I can fit a temporary bathroom and kitchen but the main thing I'm missing is hot water.

The obvious options are:

Electric shower
Electric hot water heater by sink

Are there any propane equivalents - albeit as it's hopefully only for a few months are they worth the hassle ?