IngramSmart Book Cover Sizing and putting it on IngramSmart

I need an individual with proficiency in IngramSmart to help me size the cover of my book correctly. More children's books coming soon but for now, I need help with 4 covers.

Here's what I have:

- My book interior and cover have already been designed
- The dimensions of the interior manuscript are 8.5 x 8.5 inches, cover (unknown)
- I need help with the cover size on all 4 books
- All my books are under 32 pages in length
- The attached books below are in PDF
- May have you join my Canva platform

Predicament:

- Need help with sizing the cover of each book and placing them into IngramSmart
- Need someone who can resize using Photoshop
- Need someone that knows and understands IngramSmart well
- transforming the cover to the appropriate format and help with uploading into IngramSmart.

I am getting estimates for 4 books that are roughly around $150.00 for all 4 books. I have more books shortly, if interested.

Thank you
Linda