Hey @Steve_Warburton , it is not clear to me what you are after. Do you want to know how to get the values of available and price? What is desc and how is it related to the output of the Merge node? How does “Edit Fields” relates to Merge?
It would help if you shared the workflow you have built so far to have a better understanding of your requirements.
I can only guess at this point and based on that guess suggest the following solution.
To compose the email body, I use Code node. I also assume you want your email sent in HTML format.