If your authorised representative in the EU put your products under his/her own name, then she/he takes over your responsibilities. In this case he/she must have sufficient information on the design and production of the product, as he/she will be assuming the legal responsibility when affixing the CE marking.
Many of the larger inverters come with a built in charger. Typically a 2000 Watt or larger inverter will have a 50 to 100 Amp 3 stage charger. These are much better than the typical RV converter/charger. If you are planning on a more powerful charger anyway, the combo units make sense.
Today, I get the interior dimensions of my Astro van cargo area which is an important step in planning the camper build. Measurements: Back door to top of Driver's seat - 86.5 inches Back door to base of Driver's seat - 93 inches Area between wheel wells - 51.5 inches Wall to Wall above wheel wells - 69 inches Floor to Ceiling - 50 inches Floor to Ceiling ribs - 48 inches Back door to wheel well - 17 inches Wheel well length - 32.5 inches Wheel well width - 7.5 inches Wheel well height - 10.5 inches Wheel well to Driver's side seat belt box - 39 inches Back door to Sliding door - 52.5 inches Wheel well to Ceiling ribs - 36 inches