Beer. lots.
That one is hard to answer, because that highly depends on what tasks you want to do manually, and which one you'd want to automate.
For starters I'd get GSA and you will definitely want to buy Captcha Sniper to go along with GSA.
and what would you use GSA for? tier 1 or tier 2-3?
since I have heard the best thing to do is manual tier 1 web 2.0 backlinks and blast them with GSA for tier 2-3.
the thing is for tier 1 if I do manually how should I build them? should I do few per week/day? how many in total?
and I buy the articles so which service you recommend for buying articles? how many words a tier 1 article should have?
should I buy articles for tier 2-3 too?
Thanks in advance,
Chen