What to ask for these keywords?

Can you help me on this?
I tried to post here but the system didn't let me.

Can you please restate your question in a different more understandable way? what exactly are you trying to do? BHW would definitely love to help, but we have to know what you mean. The question is confusing my friend.

Clarity is very crucial to get the right answer.

My question is how much should I ask for my service? Before, I told them a price, ask half in advance, the other half when the site would be on the first page of Google. Then, depending on the keyword I would ask 20- 30 per month to keep it on the first page.
I had a guarantee, that if the site would not be in 3 months in the 1st page, I would return the money (50% I got when I started).
But now the game has changed with, Pandas, Penguins and Hummingbirds.
Most people tell me that I should select the monthly payment model. But it's hard to convince the client that you will pay every month, even if the site is not in the 1st page.

So this guy, now has 3 identical websites with no content. And was already on the first page of Google for german keywords.
(The site dropped.)
Now he is asking how much I want to get him in the first page of Google (English - French - German)?