Sheldon as far as I know the answer is no. It is not an easy skill to remove components and replace them on new printed circuit boards. Do without the scanner a week or two and get it fixed the correct way.
As I understand it, there are two different issues covered by the RTC repair campaign. One is as mentioned, the RTC and the other is a fading display.
You could get past the RTC issue by always leaving the scanner powered up. With the fading display you could use a Virtual Control program such as ARC536 Pro.
FWIW, I bit the bullet and sent both mine back to Uniden. It was about a 3 week turnaround with 2 of those weeks being transit time. A guy could make an argument either way on whether this is a good time or bad to ship via UPS given Christmas present shipping going on.