There is this...but they aren't exactly cheap. Do believe you're better leasing a diesel Sprinter than owning it outright. Trying to decide if buying outright and running them into the ground until they are worthless or is leasing better. You're going to loose money either way...I've read your posts for a long time Clutch and my $0.02 is you're as ideal a candidate for the #vanlife as anyone I can think of. I dunno why you constantly circle jerk about trucks and 'Nests and all of it. A high roof van or pop top, 4wd if you could swing it, would fit your use perfectly.
My buddy from LA has one, was up here 2 years ago visiting and riding mountian bikes. Being able to change into the cycling clown suit in the van at the trail head sure was nice. He leases his too...said no way he would want to own it, just turn it back in for another before it starts giving you trouble.
Drives so much better than those gawd awful E-Series Ford vans too...