Winding Road was backed up for the next week, so I went ahead and did all the work myself. The only problem I had was with the retaining clip that holds the fuel line against the chassis. I got frustrated and just used the dremel on it. Got the new sensor, fuel port, and gauge all installed and wired up to the haltech. Now i have verification that the local station with E85 sucks. I'm reading 51% ethanol -_-
A bonus is that the GM fuel sensor also has a temperature output. So I connected that as well.