Scrapebox proxies for harvesting only?

Well, long story short, I have 10 semi-dedicated private proxies, bought them initially for GSA, but I bought yesterday SB. I want to harvest links, to select the best ones with DA/PA, and then MANUALLY comment on them. So ... I'll basically use use SB only for harvesting, not for posting.

Would be 10 private proxies enough? If yes, how many threads I should use? Asking this because I've heard guys who are using 50 private proxies ... and that's too expensive for me at the moment.

Also ... if 10 if not enough, where the hell can I find some good public proxies for SB? Been searching for an hour straight here on the forum but I didn't really find anything recent, only old things.

Also, if I try to harvest proxies directly with SB it moves sooo slow, wtf.

Thanks a lot, cheers!

you mean like this - i have no problem getting google passed proxies
i scan for them...

http://www.blackhatworld.com/blackh...roxies-daily-lifetime-subss-100-feedback.html

yes you need greater amount of private proxies if you want to scrape with it on good scale