If I had it to do over again, I would definitely replace the bushes. It took me hours, close to a full day, to get the forks rebuilt and swapped. I also had to use the air-impact wrench at the garage I was renting to get them apart. The seals failed about a week later, probably because the bushes were shot.
It was a huge pain to do, but I was broke at the time & now I know how to do it.
Cheers,
-Kit