Ordered the Corsa off Jegs. The eBay deal looked great until I was going to be charged CA sales tax. Jegs says it will ship out Monday.
Any tips for when I install?
I did mine with jack stands and a floor jack. A little tight but can be done. I had to sawzall my factory exhaust to get it out. I also used penetrating oil/spray on the 2 flange bolts up front. I sprayed them each day for about 3-4 days. They broke free quite easily. It is a fairly easy install. Just before you tighten everything down-set the truck on the ground to make sure everything clears. I didn't do that and when I put her down the rear tailpipe section was hitting the back axel. I had to move each section of pipe about 1/4 inch to gain clearance. Also retorq clamps after it breaks in. Good luck.

