well, any shop should have the press available. Some place like desert rat would probably be able to do the install and alignment in one shot.

Cheaper method:
You could probably take off your stock coils and shocks, take them with the new coils to a shop and have them do the swap for you, take them home and put the back on, then drive to an alignment. The rear add a leaf and shackles can be done in about an hour tops. I would call a firestone or other type of shop and see if they would just swap the coils for you.