ujoint
Supporting Sponsor
Departure angle shouldn't be a worry on these rigs. I have customers with 4x4 vans that put them places they probably shouldn't be and they're just fine.
Ditto!
I have a 4x4 V10 E350 and I get 10mpg on the freeway. You may get less with a high top due to the drag. My van is a regular body passenger van with no build out.
The V10 is favorable because of the power it has, reliability, and low maintenance costs. In 2005 and up, V10 equipped vans came with the 5r110 trans which is a 5 speed. The V8's are very reliable as well, but some will say they are a little under powered on a full build out van. The 6.0 diesels are known to be expensive to repair and cost a lot to make reliable and still suffer from break downs. The main downside with the V10 is fuel economy but the V8's only get marginally better so you might as well try to find a V10 if you're going with a gas model.
Ditto!