I use to have Graco XR-7 from Home Depot.

It was a tall-boy I think.
I have a truck with cover camper on it, every time i try to load or unload it was a pain in the a$$.
Now that i have Graco 390 low-boy, it is easier to move it in and out of the truck.
However, If you have the van, i don't think you would have the same problem like i do.
Also, if the tall-boy comes with wheels you might like it better especially when you have to park far from the job site.