How to send out quotes in zoho crm? Add paypal link invoice?

How do you send out quotes to prospects/clients in zoho crm?

I see the link for a print preview...

I want to Email the quote to a client.

I also need:
After quote is approved, I then want to send an invoice via email.

On the invoice I need a "click here to pay" link with the correct amount due set from the invoice amount.

Go back to VTiger and mod it for these features?