We manufacture a system in which this might meet our needs = Looking for 2000 to 3500 watts, prefer 12+ volts, RPM close to 1,000+/-, low profile as shown in your advertising photo, and of course affordable cost. If a candidate, will purchase 1 for testing, then orders of 25 to 100 at a time. What are dimensions and weight. Shaft size - all specs on units you sell close to our discribed needs?What is lead time to delivery to San Diego, California, USA.Thank you for your response. Mike Courson.