Yes, Phoenix USA offers two models on the V6 diesel Sprinter chassis, both with slide out options. You work directly with the factory to get exactly what you want. You are treated just as well after you take your rig home as when you were handing them your payment. Great customer service.
Model 2350 with a rear double corner bed.
Model 2400 with a deck'd out living room but you sleep there too.
We own model 2350 (no slide out) on the Ford E350 chassis with a dinette. It's now 7.5 years old. We love that thing. You can see ours by clicking on the signature link below.