Once again if you just want the site indexed it won't matter where you get a backlink. As long as it is PR7 or higher it will happen very quickly. Regarding finding sites that will fit your theme. I think you will need to do some keyword research for your subject matter to determine competition and demand. Based on that research you should then pick the primary theme for your site. i.e. Either nutrition(get specific) or money making opportunity(again get specific. is this MLM or an affiliate opportunity) will be the primary focus but do not try to have both as primary. Good luck.
Actually the ebook comes with everything required -- there's nothing else to buy -- that's why it's the complete SEO package. I can make suggestions for other products though -- based on your particular needs and the effectiveness of products I use myself.
Yes, I agree as well. I was just addressing the issue presented. There is no reason both short and long term goals cannot be pursued in parallel.
You may want to just focus your keywords on the product or product line name in that case. Good luck.