Edit WooCommerce Checkout -- 2

At MasterpieceMusic.org, we are developing a Wordpress site to sell sheet music for the flute.
We use an edited version of WooCommerce.
This job requires a WooCommerce expert.

1. On Safari browser, cart empties itself before customer can pay:
https://www.screencast.com/t/7sX3fBEdlp3g

2. Remove apply coupon fields from all pages of checkout;
https://www.screencast.com/t/WatmKccMA
https://www.screencast.com/t/1wLDvl05

3. Tidy display of Order Notes field:
https://www.screencast.com/t/rcMnN5G2u33

4. Edit Subject line for customer email:
https://www.screencast.com/t/ezt3hzM4i44
Make it read:
“Your downloads from MasterpieceMusic.org”

5. Edit product display page:
https://www.screencast.com/t/H4s3snysA

6. replace add to cart button, everywhere it appears, with this:
https://masterpiecemusic.org/images/addtocart-icon-text-button.PNG
https://www.screencast.com/t/OTZx6ybaVKF

7. replace view cart button, everywhere it appears, with this:
https://masterpiecemusic.org/images/view-cart-button.jpg

8. replace go to checkout button, everywhere it appears, with this:
https://masterpiecemusic.org/images/go-to-checkout-button.jpg

9. Items 6,7 & 8 must display a transparent background behind button.

Edits must work on every browser and on all devices.
In your application, please explain whether you will use a plugin to achieve the above effects or do coding.
If a plugin, state which one – we need to check compatibility and reviews.

NO placemarker bids.
Quote your price for the job – NOT your hourly rate.
NO phone calls or emails; Freelancer applications only