Oh wow, that's a pretty small number. Hopefully yours didn't rust away too. Sad to say the salted roads are killers...
I had one too. Came from Ontario, where they salt roads. Owned it three years before deciding the frame rust was more than I could deal with.
Even the examples from BC, the bodies mostly have rusted out already. Old Toyotas were just not built well for avoiding sheet metal rust.
40s are way cool. That one looks very good, however very difficult to determine by photos provided. I wouldn't advise buying one for an "investment". Rather, buy to enjoy.
I still think the 70 series is the way to go.
One big plus for an older Land Cruiser, 40 or 70, is that they're relatively easy for the home mechanic to maintain.