because of your thread I searched google and got to a funny page (where else, on WF) and saw world's top "back-link" + "google sandbox experts" (read: jerks) giving their million-dollar SEO-consultation free!

Some said 20~30 links in 2 weeks would be fine (he said it with "complete confidence"), he then says that 20~30 links per day would be great!

Someone said 50 links per day ...

One smart guy said 2~3 thousand back links in a week ... he also said, "build as many"...

Someone said. "don't go overboard and build 10000+ in the first two weeks", build as many [I thought "then may be 9999 would not get the sandbox", any way...]... "The backlink velocity matters, and to see higher climb of your page early you need to accelerate (increase the rate) at some point of time. If you do not accelerate then too its fine but it may require a little additional time, that's all. ".... (Of course he takes the cake!!!) [velocity -- climb -- acceleration --- Google sandbox ---- Rocket Science stuff this ----- WOW!

]
Many have 1000+ posts on WF, so just imagine the quality(?) of that forum...
If you ask them, you will get a million different answers soon. Just divide all the numbers mentioned by them (if they say 20~40 then assume 30) by a million

... if most of them say "in 2 weeks" then make that your standard for number of days...
I also don't think that those high-quality(?) wizards joked... where do they have spare time (of course apart from clustering on WH) to joke on any topic? SO I guess they are damn serious about it...
May be it will help you arrive at the exact amount of links per day/hour/week/fortnight/months...!
J/K