Solar panel information very inviting

Turned out my contact for the Amorphous Solar Panels was closed for a Christmas break. They have now responded with very helpful and positive information. The panels I am wanting to fit are semi flexible and self adhesive and are each nearly 5.5 meters long and less than .5 meter wide. Providing the roof line on the van has no obstructions, they will be perfectly suited to the purpose. The older more traditional style of solar panel are not as efficient, have a shorter life, are quite heavy as they are framed with glass covers, need ventilation on the underside and if any single cell deteriorates, the whole connecting row of cells become useless. The Amorphous panels have interconnected cells which isolate the defunct cell maintaining higher efficiency and they are light in weight also requiring no ventilation to perform at peak.

My aim is to fit 2 x deep cell batteries, and a suitable voltage regulator which should be adequate to power most of the 12 volt equipment on board.