Work required on Shopify store

My name is cory I am looking for someone to do some work on my store i require support in making the following changes

Implement live chat, trust badges, and clear refund messaging
Lower threshold to $100
implement Incentives like discount on first review,
Remove subscription language unless intended. Enable guest checkout and reduce form fields.

Update blog page with new posts ( i will provide content)

Add someone wording to the homepage or footer