Sunroof bad idea?

Hi, I am building a four-season camper van. I am a computer guy, so most of this is new to me. 2015 T-250 3.5l LWB Cargo Layout: Raised E-W in the window - 32" height, 77" long, 60" wide Driver side - shower/toilet, fridge Passenger side - batteries, electrical, sink, air heater Garage -...

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