Although this is a specific question, the process works as follows;
1: Number of content entered, 2: Number of backlinks received, 3: Number of traffic to the site
The more the sum of these three jobs done, the faster it will be. However, speed is not good in SEO. It is a professional job that requires patience and continuity.

It may be possible, but no quality work can be found at a more affordable price. Because it has a cost. Otherwise, spam and poor quality workmanship can cause your site to be completely banned from search engines. This is called sanbox, be careful.

Yes, before we do any work, we check the website and see if it has been penalized. We do not do SEO work on websites that have been subject to spam work. You will appear at the top of search engines for most of the keywords in the packages.

Yes, it is possible. However, no one can give you a guarantee in terms of cost, because in order to enter a market worth millions of dollars, you need to spend at least as much money and effort as your competitors. This will be a long and costly process.