I can not vote, so I will explain my option 3 here. The best is to not do any pre-ICO, because unless you have something huge, it will look scammy. For the exact numbers from the rest, I do not know, I am not a professional.
Thank you for letting me know. I edited the poll and now I think you can vote.
Regarding the pre-ICO, we had the same problem with this, because we know it looks scammy. But at the same time, we know the product is huge and will disrupt the entertaining business pretty good.
Also, we were thinking about making a minimum cap on the ICO itself. If we cannot gather the minimum funds we set up to gather, we will return all money to those who contributed and just use the pre-ICO funds from the investors to fund the development. This I think will boost the confidence that we are not a scam. Also, we are looking into baking milestone-based funding via the contract into the ICO, so that funds we receive are staggered.
No, I still can not vote, because of my low rank. But anyway, the last thing you told, about the steps, I recommend you to not doing it and simply using an escrow. That is somehow mandatory. In the same fashion, a minimal cap is somehow logical, but do not forget the maximum cap !