Hey Isaac, firstly like the biznas, an interesting take on the technical cofounder issue.
I will take a swing at your questions, but as way of introduction I am a sales & marketing consultant and started my practice last year. I am also a tech guy having spent 15 years in companies like Symantec, McAfee, and Network General as well as being a startup guy launching 2 start-ups and raising capital in '00 and in '06 so I have a decent grasp on your marketplace.
Now to answer your questions as best as possible:
1. I like the concept but you need to really determine target market(s) to better identify their specific pain points and be able to speak to how you solve their problems. e.g. your average MBA grad has a HUGE loan they need to pay off and are generally looking for plum, high paying gigs, if they are looking to launch they are looking for a "true" tech partnership where they can bring the strategy & management skills to the table. While an ex-management consultant would more likely have a decent runway and could be looking to bootstrap and needs specific technical skills at certain times.
2. Here comes the pitch... ;) So I started my agency last year, but that is a fancy way of saying I was a one man gang taking all sorts and sundry consulting gigs spanning the spectrum from offline direct response marketing to PPC campaign design. Six months ago, I decided to launch my third start-up, Linchpin, which is a Content Marketing Agency for Fast Growing Technology Companies. A couple of key points are that I "niche'ed down" in several areas of the business.
Firstly I decided that I would only do content marketing (copywriting, email marketing, blogging, etc.) and turn down other projects. Secondly, decided to focus on Tech companies to be able to craft a better offer and identify ideal clients for easier business development. We have two distinct target markets, early stage funded start-ups and older tech companies that are profitable but struggling to adopt the 21st century sales and marketing environment of "free", authenticity, and transparency. Thirdly, I brought on a team of talented individuals to help.
This clarity around who we are and who we serve has made all the difference, we can easily determine who & where to focus on and you start to establish authority very quickly. As it turns out our ideal start-up is a company that just raised a $2-5million series A and is in dire need of a marketing partner to help them get to their series B when they can hire a full-sized team. You need to niche down your target market and offering to the point that you say to yourself "is that too small", it won't be.
3. This is going to sound ridiculously simple but many people get it wrong. In order to be a successful driver of new business you have to go to where your prospects congregate, not where your industry does. In your case tech forums, groups, etc will be pretty worthless as a way to find your target audience. If MBA grads truly are your target market I would find out what alumni associations, linkedin groups, and online forums they hang out in. Get involved in those groups, give great advice, and have your content marketing funnel setup on your site when you start driving them there.
I hope that helps in any small way.