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.
MARYLAND: Maximum RV width 96 in. (102 in. on certain federal roads); maximum motorhome length 40 ft; maximum trailer length 40 ft.; maximum RV height 13.5 ft.; maximum combined length for two vehicles 55 ft.; triple-towing not allowed. Riding allowed in truck campers.some roads 96 in.); maximum motorhome length 45 ft.; maximum trailer length 53 ft.; maximum RV height 13.5 ft.; maximum combined length of two-or three-vehicle combination (with fifth-wheel trailer only) 60 ft. Riding is allowed in truck campers.