How big do you think is that marketing funds? $5k, $10k? If that is not enough, what is enough?
Probably you'd want to start with a signature campaign on this forum.
The standard rate is about 0.1 BTC /month (for senior member), but to attract enough participants you'd need 0.12 BTC.
To be effective, you'd need to recruit around 50 people.
Thats:
50 * 0.12 = 6 BTC, which at current rate ($390) gives $2,340 for the first month, just for the sig campaign.
On top of that, you'd probably need some advertising outside this forum and some sort of promotions/bonuses/on-site giveaways to give people an incentive to switch to your site.