Design KDP Book Cover in Canva -- 3

BUDGET IS 0-30 SO I CONTACT BID IN THIS RANGE OTHER CAN REMOVE THEIR BID.
IF SOMEONE OFFERS 8 OR 10 EURO AND I INCHARGE HIM BEFORE TO CREATE MILIAR STONE I WANT TO BE SURE THAT IS ABLE TO SOLVE THE PROBLEM.
COVERS FORMAT please post the bid JUST IF YOU KNOW HOW TO DO IT NOT TO TRY.
I don't contract the prices like at the market so if you offer 8 euros of bid and I have to pay 10 which includes 2 euros of commission to the site I pay the commission, if you refuse the offer I will report you for assistance fraud.
I'm looking for a skilled graphic designer to create a complete KDP cover for my fiction book. I already have the front and back covers designed, but the Italian previous graphic Lorella Acquafredda didn't provide me the measures and I need someone to combine them into a single file as KDP required with the correct dimensions for KDP publishing.
I have yet KDP measure and my manuscript form is 6x9 inches. The file of cover should have BARCODE and should be saved in a pdf format.
Key Requirements:
- Use Canva, Photoshop or other graphic program to create the cover
- Combine front and back covers into a single file
- Ensure the cover fits the 6 x 9 inches dimensions, including spine width
- Include both the title and author name on the spine
- Familiarity with KDP cover calculator to ensure accuracy

Ideal Skills and Experience:
- Proficiency in Canva and graphic design
- Experience with creating KDP covers
- Attention to detail to ensure proper alignment and dimensions
- Ability to replicate or adjust images as needed for the spine

If you have the skills to bring this project to life, I would love to see your work!