Hello; much will depend on the type of stand. My guess is that the stand for such a large tank will be stout metal. If so, there may be verticle elements of the stand that will determine where the shims will need to go. I like to use solid shims, usually made of metal, so there will be not be an issue of compression.
This may not be practical with such a large tank, but I like to level a stand first then add the empty tank. I then check the level front to back and side to side before adding water. You may have to set the stand and the tank in place as soon as the delivery truck arives, so try to have the place prepared.
Be aware of potential hazards in the way when moving the tank. Door knobs and potential tight places along the path. I always try to have a place to set large heavy objects prepared ahead of time. I also like to check to be sure there are no protrusions sticking up that might touch the tank bottom.
I also do not like to carry a tank with lights and such in place. If such things should fall into the tank, the glass can be broken.
It might also be best to talk to the group and work out a plan for the move so that all are on the same page about what is to happen.
Good luck