[mmmc101]

I am looking for advice/input on shoreline transfer switches (50 amp) ,converter/chargers and pure sine wave inverters. The 50 amp service is needed to run two roof airs.One on the toter and one on the trailer.The converter would need to have the distribution panel with it. The inverter would need to run a LED flatsreen TV,a bar sized refrigerator and a coffee pot.Approx. 16 amps total if all were running at the same time.
Now the questions: Who makes the best of these products and where to buy them. I am currently looking at the Xantrex SW 2000 inverter. Seems a little pricey but have heard they build quailty products.
The converter and transfer switches have a wide range of prices for what appear to be the same product. Why is that?
How many batteries would it take to run a 2000 watt inverter for 8 hours at 60% ?
Is a 2000 watt inverter to big for this application?
Sorry for the dumb questions but this is an area I know nothing about. Any and all input/advice is appreciated.
MMM