I agree with chim. Seems it would be easier to raise the last two up and push them to the end, raise the 3rd from the end and install, then slide 1 & 2 into position and install. Since you already have the lift in place, it's right there and you're familiar with the procedure VS one more change in operations.
Anyhow, I'm sure enjoying your documentation, descriptions and photos. Thanks! :thumbsup:
I'm learning it as I go. It's been a fascinating experience.