sign install

All right I have read past posts on this subject and have some questions. The rhino post driver. What size air comp. do I need? Can it run off a generator?Or is it a tow behind like an ingersol Rand Drilling into asphalt and concrete.Whats the best and fastest way?Where to buy? I have not gone after signs because I dont have the equipment to do the job. I'm tired of walking away from money! We have the lazy liner and airless machines and can stripe fast as (expletive) but when it comes to signs I feel like a virgin. Ya know! I want to do as many as possible as fast as I can but dont know how.

I have posted before, I think the skidril post, www.skidril.com pounder is the best bet. Self contained, 2 cycle engine unit that will install the 3' spike in the ground. Then attach your 8' sign post, u channel or 2" telspar to the 4" to 6" stub sticking out of the ground. The machine weighs about 50 lb and is easy to use. All striping equipment is in trailer, all sign equipment in van so I can pull up one truck, stripe lines, install signs and leave one shot deal. Mike In-Line