Keep in mind the Sprinter walls arch in as they near the roof--not as much as an E-Series, but more than a Transit. And on a Sprinter if you're 6', you can't sleep transversely (left-right) without adding the Flarespace flares (whereas on a Transit you can do so without flares as the interior walls are wider apart).
A vehicle’s worth is not what you put into it, but what it put into you.
2019 F350 SuperCrew flatbed composite camper
2018 Transit 130WB MR EcoBoost (SOLD)
2010 E350 RB V10 Cargo "unicorn" (SOLD)
2007 E350 4x4 "VANdiana Jones"(SOLD)