How can I improve my contact pop-up form?

Hi there,

I have a contact pop-up form for some items that require a quote as they are custom made, ect.

I had someone create this pop-up form for me and they did a shotty job at it and I’ve given up trying to get this fixed as their communication is terrible. I have tested the form and realize that not all fields show up in the email we receive. These fields have valuable information that we need at the time the email is received.

I know how to tweak coding to an extent, I am wanting to add the highlighted fields into the email we would receive, I just cant figure it out.

Pop-up form on our website:

Test email we receive:

Can someone assist me with getting this amended?