I decided to try building out a Prius V (The larger Prius). This is the story of my build, and trying to finish it in time for the border closure this past winter.

I have no interest in product promotion, and the only reason these are linked below is because people asked in the comments.

Items used (affiliate links for both Canadian and US):
Electric Heater: CA: https://amzn.to/3SzNg2C US: https://amzn.to/3BUQsQu
Inverter was purchased second hand, but this is the one (Renogy 2000w, might be cheaper on their site) I would recommend: CA: https://amzn.to/3PdcIYW US: https://amzn.to/3zQnlvc
The Plug Thermostat I ordered is no longer for sale, but here is a similar one: CA: https://amzn.to/3p95Np8 US: https://amzn.to/3SDxZhd
12/24v Car Fridge(with compressor): CA: https://amzn.to/3JOAN7d US: https://amzn.to/3bIh6Bq