the sentence needs editing

[NewHope]

With the pursuit of "Simplicity" in man's attire design and the pursuit of "Excellence" in the man's world, the establishment of the first famous brand in our domestic apparel industry within 3 or 5 years has been my biggest dream.

[Tdol]

In pursuit of simplicity and excellence in men's clothes design, setting-up the first famous designer brand in the domestic clothes sector is my greatest ambition.

I'm not very good at this, but does this sound any good?

[NewHope]

The "within 3 or 5 years" is an important timeline, which should be added to the rewriting.