Ryan-
Greetings from NH. Can't stay away from the Stovebolt! When my bro-in-law put a 350 in his S-10 Blazer, Headman's were the only way to go to clear the steering box and hug the block. This is a good option (plus I can arrange a look-see if you're interested).
If you have room, you can save money with some salvaged stock GM products instead. What's important to you, look or $$?