I got into the shop for a short time this weekend. Didn't have a lot of time, I ended up forgetting to take pictures as I went. I got the leadscrew mounted up. Was fairly easy, just a little time consuming.
It went like this:
1. Mock up
2. Test
3. Test again
4. Spot drill one hole
5. Remove everything
6. Drill the correct hole for the tap
7. Tap
8. Go to step 1 (repeat for all 4 holes)
This was step 7 on the last hole to be tapped.

Finally got it all assembled:

You can't see it, but I have my cordless drill chucked up on the leadscrew off to the left. I ran the saddle up and down the bed a few times to ensure there was no binding. I am happy to report that all looks good. Still a little early but the motion seems much smoother than before.
Just waiting on the new motor mount to arrive now.
I may not be able to work on it in the next few days as I am studying for a test at work...
Still deciding what color to paint it.
Eric