Buying the cheapest possible ‘thing’ you can find is often not such a good idea.
Especially with motors, Find a middle-price-range brand-name motor that has a business behind it that looks trustworthy has reviews etc.
The easiest way to make motors “cheaper” is by using less copper, smaller magnets, smaller stator & other cheaper materials. Like cheap bearings etc. All those items are critical to performance & should never be compromised to achieve a lower cost. You should simply buy a smaller 6354 motor that already has a lower cost.
Also note, Motors are extremely heavy for their size, which means sending them back for a repair etc. isn’t always viable due to the shipping costs. Especially for overseas vendors.