Consulting Site Live

So I've launched my second site, this one is for consulting and contract jobs. No, I am not fast enough to build and write content for an entire high quality site in just one day. I have been working on both of these sites simultaneously for the past few months. I am just now getting the balls to put them into action.

The consulting site is exciting because it is actually going to be a solid and reliable way to generate income while I am working on monetizing the other websites. I am going to be consulting/contracting internet marketing services such as PPC management, SEO, media buying, affiliate management, and web development, etc.

I have manged to also work out the 12 month sales/expense forecast for the overall business, which includes both the websites and consulting business. I am planning to continue at my day job until the end of May. In the meantime, I will be working evenings and weekends to get things set up for myself, client-wise. My goal is to have at least two clients by June, preferably for PPC as that would be an ongoing monthly commitment. With start up savings and income through May, I will be able to survive until August on my own without any clientele. While it is only 3 months (June to August), I am confident that things will work out. After all, between June and August I will be able to devote a full time schedule to generating leads and pitching prospects.

The only problem I am having at the moment is figuring out how to forecast sales (for the business plan). How do you guessimate that for a service industry? I have a friend who works with business plans, so I will ask.