3-27X, 4-36X, 5-45X All would be an extremely wide range of magnification.
The problem I predict is with such a high magnification (above 25X) and with only a 50mm-55mm objective, is not enough light is going to get into the objective. Look at the 20-60X Razor spotting scope, it has an 80mm objective and works beautifully.
I thought about that. I figure at lower magnifications light transmission would be normal. So, you aren't any worse off than before, but when light is good, you have more magnification available. It may not be as effective as carrying a spotter, separately, but it would be a good compromise for those hunts that I'm leaving it behind, anyway.