Sorry, but I think it is impossible for you to see the whole milky-way. You can only see a part of it, as we are inside the milky-way.
If you want to see large portion of the milky-way, you need to buy a bigger diameter telescope like 5 meters or bigger in diameter.
However, you can still use regular telescope but of limited zoom capability.
It is better to use this telescope at higher places like on the mountain, as this will lessen the light scattering due to gas pollution or the clouds in the sky, giving you better light penetration from outside the earth atmosphere.
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