Honestly not a good idea, I have seen a car left in one of them for two years when a friend was in Australia when it was taken out it had rot like nothing I had seen before, genuinely went downhill an unbelievable amount in such a short space of time. No airflow and they sweat and build condensation.
If I was set on using one, I think I would try dryline it out or use a carcoon with extractor and de humidifier inside it.