Royal Shield is sort of a sealent which can last for as long as a year, but in or environment it wont last more than 6-8 months.
In that time you wont need to wax your car regularly, just wash it and dry it, the gloss and shine would be apparent as it was on day 1, when you got it Royal shielded.
For Corolla's and Civic's, the demand is 7500, for Accord's and Camry's 8500.
There is nothing like a hand application of wax, but if you're not really into detailing and want to get done with the whole procedure quickly, then an Orbital Buffer is the thing for you, Rotary Buffers are usually used for paint correction, sincve they have variable speeds. For regular waxing and de-waxing Orbital buffer it is, would cost you 1950 from metro.