There's nothing wrong with the 3.8 V6. Could you use some universal joints to move the Steering shaft?
Stay away from the 2.8 V6, not good. 2.8, 3.1 & 3.4 are 60* Degree V6 engines. The 3.4 is a good engine. 90* V8 & V6 Trans don't bolt up to the 60* engines.
The 4.3 V6 is basically a 350 V8 minus 2 cylinders.