Changes to single product page

Hello,

I would like to make some changes to my single product pages, and was wondering if there’s any code to make these changes myself?

The following are the changes I would like to make:
1. show seller name under product title

2. show “VAT included (where applicable), plus shipping” under price (but when US sales tax or Canadian tax is to be charged, this should be incidated here too)

3. Remove all tabs here and have info show on page instead

4. show “additional information” (material, weight, size) above product description & not in tab

5. Show “”shipping & returns”” under product description (always visible) Shipping & returns
Ready to ship in 3-5 business days
From United States
€21.46 shipping to Germany <-based on IP address but germany can be switched here”

6. I would like to add more products & reviews to be visible (instead of having tabs) The layout of the page should show as:
1. reviews
2. more vendor products
3. best sellers “”similar products””.

Screenshots:
1. https://snipboard.io/PWSZID.jpg
2. https://snipboard.io/Tngslz.jpg

Would this be possible to do?

Thanks!
Rod