You seem to place a heavy importance on the pilots (comments like "paramedic along for the air ride" indicate your contempt for the medical personnel) but you don't seem to understand that without QUALIFIED personnel, you are nothing more than a really really fast hearse.
First of all, flight qualified RNs will cost much more than 60,000/yr including benefits. In fact, you would be lucky to find qualified flight paramedics to work for that. If you want to hire non qualified individuals, I am sure you can find individuals who have been turned down by other flight services who will work for what you can pay them, but you get what you pay for.
The nurses you will be getting from the hospital will have no knowledge of flight physiology, CRM, AMRM, or other topics that are flight specific. Also, keep in mind that you may be a good pilot, but do you have the knowledge necessary to be a HEMS pilot? Have you flown SIC with a HEMS operation, worked with medical personnel in emergencies in the field, etc.
Also, you have notnfactored in the cost for a full time medical director, maintenance, engineering, consumable medical supplies, equipment, and the lost goes on and on. For consumable supplies and medical equipment alone you are looking at $200,000 at least...
Also, do you have any idea what it takes to obtain CAAMTS accreditation? If you want to be taken seriously in the aeromedical industry, CAAMTS is becoming a must have.
I am helping set up the medical side of a HEMS operation in Saudi Arabia, and we literally have an unlimited budget, and we are still having issues (albeit some are political) but the point I am trying to make is simply having the financial plan to make it work is not enough, and I think if you were to actually begin making purchases for this operation you would realize that you estimates are grossly under the mark and short sighted.
It looks like you intend to lead the aviation side of things, but do you have anyone giving you input on the medical side? You need someone full time just to plan and administrate the operation. Simply coming to a forum does not cut it.
Anyway, I have said enough already...the list of issues with this plan literally is endless. If you are serious about this, forget this idea for at least the next 5-10 years, build your time and get a job as a HEMS pilot, and you will begin to understand how much is actually involved in this industry. It is more than having a few medical people, an aircraft, and a place to lift off and land....mentalities like the one you are exhibiting are what causes the inexcusable number of fatalities in the aeromed industry each year.
I say all of these things with the utmost respect for your altruistic ambitions....