Fiat Ducato Sketchup Here

I currently have the whole body as one group. Should I explode it and make the left/right/front/roof individual components to mirror details? Or will that break the watertight mesh for 3D printing?

: I just downloaded the "Fiat Ducato 2019" model from the 3D Warehouse and deleted the wheels. Saved me 10 hours. Why build from scratch? 😅 Fiat Ducato Sketchup

Thanks in advance. I’ll share the final .skp file on the 3D Warehouse once it’s "good enough." I currently have the whole body as one group