How bad is my plan to get pre-launch users?

In the past I've been guilty of waiting until a product is complete before I even start thinking about marketing. I've had good results with SEO and organic traffic but it has taken over a year to get rolling. This time I'm trying to do things differently and get some users pre-launch. Here is my plan - feel free to flame it, let me know a better way and help out with the obvious gap... The product: twitMate - a service to tweet and sustainably grow a Twitter audience: https://twitmate.com Where it's at: I have been running the service successfully for a few private beta users for a number of months. During this time there was a very simple holding page up and I started our own Twitter account a few weeks ago. On the holding page and Twitter I asked people to email me to join the waitlist but have only received a couple of emails. Today I went live with a landing page with information about the service and the option to sign-up for early access on a first-come, first-served basis. The aim: The aim is to get 10 customers per-launch. In order to get this I am going to offer a big discount that is locked-in for life - this will probably be a loss leader but should hopefully have the benefit of getting traction early. This by itself doesn't seem enough to reach my aim as the landing page won't get much organic traffic until I create more content. I am an indie hacker and this is a side-project so I have no budget for marketing but I do have some time to devote to it. Any ideas on how to get these 10 pre-launch users?