How far is it moving? Across the room? To another site?
We moved our 9406-520 about 15 miles. We contracted IBM to do it. Everything went smooth.
If you system is under maintenance contracts with IBM then you will need to get them involved.
They will void your warranties and not cover damage if it occurs during the move if you don’t follow the rules.
If you’re moving across the building or across the street this shouldn’t be a big deal. IBM may let you do it yourself and you’ll just be out for the inspection.
If you’re going across town or country then this will be a bigger ($$$) job for IBM.
I’ve moved smaller 8xx systems from Irvine, CA to Cleveland, OH in 24 hours for around 8-10 K per system.
But I’ve also moved bigger systems across town and dropped 30 K to have 10 IBM guys get it done in 8 hours or less.
It’s going to depend on the bells and whistles you sign up for.