I found out some things:
The ETX 80 was not built with imaging in mind, so there are no guarantees as to what it will do. However, using a 497 or StarNavigator hand control and an 882 Tripod that can tilt, (it is the one the ETX 90 and 125 have come with), it may be possible. The 494 handset that comes with the ETX 80 does not have programming in it for equatorial operation.
Making a wedge of some sort to go on the existing tripod may be a fairly inexpensive way to try things out, if you can come up with, beg, borrow, etc. a 497 or StarNavigator handset. I am certainly going to try it myself to see what happens. However, I have some other projects going right now that I cannot turn loose of, so it will be a while.
If you see your way to trying something like this, please post about what you find out!
The LS is not supposed to work in equatorial mode, but Wolfgang has been doing it with a lot of hard work and creativity. Maybe the same will hold true for the ETX 80.
Hope this helps,