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.
RV Bedding. RV Size Bed Dimensions are generally RV Twin 34 inches wide by 74 inches, RV Full or RV Double 49 inches wide by 74 inches long, RV Full XL 53 inches wide by 79 inches long and RV Queen 60 inches wide by 74 inches long. These are fairly standard RV bed measurements.