A Sprinter diesel swap?

[mani]

At the risk of getting boo-ed out of here, I'm a bit fed up with the 13mpg I get with my '65 I6 250 T5 C-10 Short-fleet. I love the truck, but we're not going back to $1.50/gal gas. Given that and I just bought a VW TDI Passat and get out of the box 43mpg. No joke. And that's with a stick and I hardly can use 6th as its so damn tall... The torque is fantastic. So I been thinking about a good diesel stick swap and not a Cummings boat anchor fuel hog. I've been eyeing a Mercedes Sprinter Van 2500 or 3500 motor with a 5spd. They are out there in the junk yards to be had and have been made for decades in europe, so have a good track record. Anyone had the guts to try this in our beloved C-10? I can fab mounts no problem. (NOTE: I did not say a Ford, Mopar or rice motor swap, so don't slam me for too much heresy). I didn't get any hits on searching this. Thoughts?