open cart website

I have a website on Opencart and this is the link for it
https://usedgermanparts.com/index.php?route=common/home
We must update it
And change your theme
Adding a Visa payment gateway
Add live chat
And the possibility of entering through Facebook
Please write the exact price because I have posted before and prices vary upon agreement
https://germanparts.ae/axle-suspension/shock-mounting
Like this web I want it