Here is a simple way to greatly improve the looks of your Winnebago Revel/Mercedes Sprinter Van. These flares install easily and I think make the van look much better! Link to where I bought mine: owlvans.com/pr...
No you can't change the coach amperage- I just use a 15 Amp Male to 30 Amp Female Dogbone like this: www.amazon.com/Leisure-Dogbone-Electrical-Converter-Indicator/dp/B07BYS9HL7/ref=sr_1_5?crid=3F3VMHFKLAQP3&dchild=1&keywords=15+amp+to+30+amp+rv+adapter&qid=1605044137&s=automotive&sprefix=15+amp+%2Cautomotive%2C164&sr=1-5 Let's you plug right into your home no problem.
You can control the maximum amperage that the Zantrex inverter/charger will draw from shore power via the Zantrex control panel. It's kind of a pain cause you have to keep tabbing through the settings. I ended up replacing my Zantrek remote control panel on my 2021 with the Bluetooth version of the same thing - it's drop in compatible (just remove screws, plug control cable into new unit and screw new unit back into panel). It's much easier to set the max amps on shore power via the iOS or Android App that Zantrex has for that 2KW inverter/charger.