22k search results. is that rankable?

Hey, i found a long tail keyword that has around 4k of searches and has 22k results. and another long tail keyword with 6k searches and 54k results.

my website is going to contain the keyword. For example www.keyword.com

what keyword should i base a website on?
how long do you think it will take to rank #1 ?
what methods should i do to make my website rank?

Thanks for helping a newbie out!!

P.S: I am going to promote a CB product on the website and monetize the website with adsense.

For start i think this is the wrong section. Should be on a SEO section or something.

Well for 22k results its seems easy to rank depending on the competition, i mean you could try rank 50result keyword but appear in the last position if the other pages are better for the search engine.
Also if you can get the exact same domain it will be a plus too.

1)Read some SEO guide's, tutorials, tips etc.
2)Research about every single step you're doing then do it.
Some fast tips

Put your keyword in your page title and your h1 heading.
Test your page on some online tools such as seositecheckup dot com

Its a simple procces but it needs time, if you cant do it ask a proffesional for on-page SEO then you can do some off-page SEO (backlinks).