When does the subscription start?
The subscription starts when the site goes live: when you approve the prototype and the site is launched.
Until launch you only pay the start fee. You look at the prototype with your own content, and once you approve it, the site goes live: from then on the subscription runs.
Until then, on the Payment and invoices page of the portal, the Next charge line says it starts when the site goes live. After launch you see the date of the next charge there.
The first and the second year
The first year includes the start fee, from the second year only the subscription.
Let us look at your site.
The quote form takes two minutes: package, add-ons, your company details. You see the price at once, and it commits you to nothing.