Here's the motor mounts that I used.
http://www.speedwaymotors.com/57-New-Style-Hemi-Weld-In-Motor-Mounts,7634.html
Little bit of cutting and hammer work, here they are mounted. I also added another piece that drops down to the crossmember and gets them really sturdy. You can see what I did for a trans crossmember as well. My positioning has the motor set back significantly over the stock chevy motor, yours will probably be further forward. The stock steering will work, you don't need the rack and pinion like I did.
The other issue you're going to have is exhaust. I couldn't find anything off the shelf that would fit and had to build my own headers.