I used to pack a blow up queen mattress and wrap my dob in that.
Blow up the mattress just enough to provide suspension / protection from the rest of the vehicle. It worked really well as packing, and if we didn't use the mattress it just folded up into nothing with the air removed. Saved carting around a big foam box
Edit: always used a laser to check collimation when we arrived and usually tweaked it. I did this every viewing session regardless.