Its all about quality Google doesn't settle for anything less than real content anymore and if they do it wont be long before you get caught,...
Head to GoDaddy and get site or domain appraised man. An appraisal is the only way to be sure.
I think you've come this far why stop now. Progress may be slower cuz you are busy but dont give up man great things come with hard work it was...
Btw please make sure you have a business plan laid well with all this.
I think its a pretty good idea.
Make sure the domain is keyword rich, if the keyword is taken you can add something before or after to make it unique. Example "getkeyword.com" or...
If I were you I would get in contact with some businesses or sites in your niche and see if you can promote them for a fee on that page.
Make sure we are talking exact searches to get a clear look at the amount of searches first of all. You don't want to go off of a broad search.
Only look at EXACT search results to get the true number of hits for your keyword. Broad is too..well, BROAD. :)
Google is too smart for that now man don't risk it. After the Panda update they got even more strict.
If I were you I would just try a different keyword. There are too many out there to get hung up on one when your not sure of the numbers
Separate names with a comma.