Bigger,
Loading and unloading may seem easy, non hassle but I can tell you after blasting drives, car parks or buildings for 8 hrs + you'll be in no shape to unload and certainly not inclined to
Look any a relay or boxer with high roof and L2 or L3 length - hi top also a must we have a vivaro and its a ball ache just loading a gutter vac system in it
Darran