I had real trouble myself doing a Tron edit late last year. Ended up calling it a day, but planning to go back to it as soon as the new one is released. (Fingers crossed the new transfer makes a lot of my 'fixes' redundant.)
I wasn't trying to make it look like Legacy, just to lose some of the grey drabness, and fix a few effects bits and pieces. Champing at the bit to try again in April.
An brief example of what mine looked like...
(Don't expect anything too drastic.) :)