350c transmission behind a 6.2 diesel? Doable?

[rs74]

From what I see they didn't off this combo for the diesel. Only the 400 and 700r4. I have a 350 lockup transmission sitting in the garage but it doesn't look like a torque converter is offered for it. I thought if so maybe put it in the short bed instead of rebuilding the 700. Truck has 3.08 gears in it so if it is doable then about what kind of rpm's would I be looking at on the interstate.