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.
The same thing can be said for RV trailers these days as well. Many large luxury units are also built on a 102-inch wide platform. One thing the salesman probably failed to mention is the fact that in many states your motorhome or RV trailer exceeds the maximum width limit for motor vehicles.