Product entry for magento

I hired a data entry for products to be inserted to magento, first one he put wrong products and run away, another one put wrong prices and products in wrong categories. I had bad luck with them and hopefully. I can find a professional administrator who can do the following:

1- Upload products to the right category.
2- Put the right prices and description for each category.

In this link you will find an excel sheet with different tabs: https://www.dropbox.com/sh/g0ex4zq92zfyla8/AABykMeMkjoA2JMPnJzVu8Mha?dl=0

In the first tab will show you the category and sub category.
And the others tabs are basically the sub categories.

There's product name, description, delivery time ( can be added within the description) and images are in the folder.

I want this to be done in 3-5 days. And I won't pay until 100% all products are correct.

The products are already inserted into my magneto, but lots of them has the wrong prices, so you eaither upload everything from the start or just fix the prices.

The website is: blancdivoiredubai.com/test-v1/

there's 600 products needs to be inserted, and all of them doesn't have SKU. Is it important to have SKU?