I'm going to be using it as a sump and I'm just using a submersible Mag 7 for my return so I really don't even need to use the bulkhead, I just need to plug the hole where the bulkhead is.
What did you notice about the bulkhead that looked inferior? The one that came installed on it looked pretty heavy duty and had rubber gaskets on both sides:
<a href="http://www.flickr.com/photos/namwodahs/2396754275/sizes/l/" title="DSC_2749 by namwodahs, on Flickr"><img src="http://farm4.static.flickr.com/3275/2396754275_fcc51af8fa.jpg" width="500" height="333" alt="DSC_2749" /></a>
Stock Bulkhead (click for larger pic)
<a href="http://www.flickr.com/photos/namwodahs/2396537097/sizes/l/" title="Bulkheads by namwodahs, on Flickr"><img src="http://farm3.static.flickr.com/2056/2396537097_a6a919478b.jpg" width="500" height="333" alt="Bulkheads" /></a>
1", Stock, 1.25" (click for larger pic)