X2, although there are days after it's rained alot and no frost is forecast that the roads are salt free so you can go for the odd drive in the winter. But those electric units are pretty useless in a drafty bug, it's a little like trying to heat a warehouse with a candle, to make the BTU's you really need you'd need a generator in the back seat. Dress up warm and carry a little squeegee for the inside of the windshield if the car leaks. Keep watching the Canadian tire flyers as they usually start putting that stuff on sale fairly soon, if you can get one for cheap it may keep a peep hole in the windshield clear enough to see.
If it's just for inspection purposes some tubes from the fan shroud to the heat inlets on the body will likely do, not many non VW types actually expect heat to come out of the vents, as long as it blows air it'll likely be OK.
