Here is what I would recommend you do:
- Remove your current clock assembly
- Verify it has part no. label 83910-33060 on it
- Verify it has a 14-pin wiring harness connector on it
- Not all of the 14-pin connectors have wiring in it
- See if there is a 24-pin wiring harness connector on the same harness assembly that is not connected to anything
If you have an unused 24-pin wiring harness connector on the same harness that has your currently used 14-pin connector for your current clock, then a clock assembly from any 2002-2005 Camry XLE model (which will be part number 83910-33070) should work on that open 24-pin wiring harness connector, and I would think you will get all the data that a normal XLE would have on it. Ebay has part no. 83910-33070 for about $25 w/o shipping. Otherwise, if you can pull one from a salvage yard, that would be another option.
I can tell you that I am not going to pull my clock assembly out of my 2003 Camry XLE to see if I have an unused 14-pin connector for a plain clock assembly, but if you want to go this route, you should see if you have that 24-pin connector behind your current clock.
If you don't have an unused 24-pin connector behind your current clock, I don't know of a way to get a 2002-2005 Camry XLE clock unit with instananeous & average MPG and other features to work on your LE model.