I have landed a few F4U's without the Vstab...I have no film, but I think it is an "accomplishment" thingy you may be able to look it up in my stats. to see that I actually did accomplish the task.
Without the Vstab you have to use throttle and elevators and you prolly might try flying 90 degrees from level...in other words, your elevators become your Vstab, and your throttle becomes your elevators, and you may have to switch from one mode of flying to the other. It is not easy to accomplish but it can be done and it takes concentration and patience!