With 25 years of managing company turnaround and startup sales efforts (all with successful exits), I can tell you that all of the information given is great advice, but what no one offered is the various sales models available today in the marketplace. You seem to be an ideal candidate for an outsourced commission-only dedicated sales team. As Chris said, acquiring the 300 clients first year should be your primary concern, your laser-focused goal which doesn't give you the freedom to learn about a completely new profession (Sales). What compensation should I offer, should we have a lead program, how much should I pay for leads, what is the correct lead/sales ratio, etc, etc, etc. And without the two most expensive ingredients of any successful sales effort, a seasoned sales manager and training, you are just throwing money away and wasting valuable time.
The fact that Sales is a right brain function while most founders are left brained creates a logic quagmire that swallows many startups that should have been successful. Many aspects of Sales are counter intuitive where logic becomes your biggest disadvantage and do you really have the time to learn why that is true? The answer is obvious and so then is the approach of leaving the expertise to the experts so that you can concentrate on what you do best. There are multiple sales models available today that meet the needs of almost any business, especially startups. If you'd like to learn more about your options then you can email me at Vincent@jpmpartners.com or go to the website with the same address. Hope this helps and Good Luck!