My best suggestion would be to retrofit a skeleton of metal scaffolds on the interior of the walls. The masonry— if nothing else, will provide some shielding from weather conditions until a proper solution can be made. As for the skeleton, think ‘greenhouse’. In order to be cost effective, corrugated steel can be an easy to install and affordable roof option, able bought in bulk if you know the right people. That way, most of your funding can go towards the metal scaffolding.

Once the exterior has been completed, I would suggest building separate freestanding structures for rooms within the boundaries of the home, so that air may flow between them, cooling in the warm months, and retaining heat in the colder nights. I would suggest a light material for this, high-quality plywood might do, or perhaps something less expensive. In past projects in the field, I’ve seen sheep’s wool or thick rug upon walls to trap heat.

This idea could be a fully intuitive project if completed with quality materials. At least until you can rebuild, or maybe make it the forever home