I take it that you want to add solar to your Intech Flyer Chase low profile camper. You should be able to mount a solar panel on the factory roof rack, pass the cable from the panel through a roof cable gland and install a solar charge controller to provide power to your battery.
If you are handy with tools, pretty much any basic solar installation guide presented by anyone competent on youtube can be implemented on the Chase.
If you have not already done so, email Intech Service and ask for the Flyer Chase aluminum frame drawings. They will reply within one working day with dimensioned, parts listed Solid Works drawings of your in-wall, roof and floor frames. You can measure where to drill and successfully fasten into subframe based on those drawings...