I also think that the option should stay there regardless, because the user wouldn't know that the option exists.
That's one reason I use run level 2--I can't stand how that blasted X server never quits if you log out of the graphical desktop.
You can always write "init 2" in a console. Perhaps the text in VasmCC should say that. Or maybe VasmCC itself (and VASM) could launch init 2, by just asking for the root password. Of course, the problem here is that the user should be aware that whatever is in X is going to disappear for good. Or perhaps explain the Ctrl-Alt-F2 procedure... but yes, it is a bit complicated.
Or maybe a text in the window itself (above the icons, for example) that explains this, instead of the user having to click on it and getting a message....