It seems like you already have a sound plan. If you are selling a product or service to individuals at home, what better way to expand your business than the internet. It kinda cuts out the whole "door to door" part.
Set up a website...not necessarily a landing page...and drive traffic to it by using the simplest forms of SEO and directories. You can use pay per click as well, but be careful...hire an expert for that.
Sell you product or service the same way you do face to face. Keep it as personal as possible and include a form where people can put in their name and email for more information. The cool thing about selling online is that you can include your selling points in a number of different media...include audio and visual.
If you know anything about audio and visual learning and it's statistics, it's always great to reach people in more than one way.
Your best bet is probably to hire someone locally to set all this up for you. Hire them on a contract basis...they should be able to provide you with a suitable set-up in a couple weeks. I hope this helps...best of luck. Post back here if you'd like some info and links on how to do this yourself.
