Congrats on your upcoming new rig!
With the 200 watt SP option, you may very well be OK. Only going out and using it for a few months, learning how the battery bank supports both the rig's equipment, and your usage style, will confirm that your OK.
If not, after investing this amount of funds in a new coach, figure out an upgraded solar panel path that could support you better. (I have no real knowledge of how this coaches optional 200W SP is installed. Many manufacturers do not use heavy enough gauge wire runs. And lower quality Controllers.)
My intended message is to set this coach up to support how you two wish to use the rig. After this major of a purchase, a few thousand more to really beef up a solar panel array is worth the investment to allow using your rig you're way!
Again, you may find it is 'great as is', hope so. If not, then check back into the Going Green forum, and start researching options.
We determined after two years, that we wanted to do a higher percentage of Boon Docking. We replaced our two older 8D AGM's, with four L16 AGM Lifelines for a 800AH bank. We are propane for our fridge and range top, and diesel for our Hydro Hot heating. We also use a Propane Heat Buddy for our colder nights, tapped into the coach propane tank. Finally we're about 65% thru with upgrading to LED's.
We added a 1200W 48V Higher End Panasonic/Sharp Solar Panel set, with a Midnight Solar Classic 150 controller.
With a few movies, normal usage of night lights, stereo usage, and AM coffee pot usage. We are between 75-80% SOC a little after the coffee has brewed. With the over sized Solar Panels, we're typically at float mode by noon. (Flat roof mounted, September usage, up in the South Dakota and Wyoming Tetons during this 6 weeks of usage.)
The only time we've had to run the generator, except to monthly maintain it - was when we had 5-6" of snow on the roof!
I went oversize on battery bank, and solar panels, as we do consume up to 200AH's per day (usually between 150-175AH, but sometimes the DW uses her hair dryer and other high usage instruments of beatification
Enjoy your rig, and it would be nice if you close the loop back after a few months of usage - and let us know how well your full electric coach is doing 'as is'.