Replicating multiple databases into one database
How do you manage the primary keys on those 5 instances? Unless you carefully planned this ahead so that each instance generate non-overlapping keys on each instance, on each table (sounds like you didn't) there is no way aggregate the data. See Managing Identity Columns for identity keys. For application generated key it gets more complicated as is the application responsibility to generate non-overlapping keys. 

After you set up proper key management on each of the 132 table involved on each of the 5 instances, you can set up replication, making sure you apply the initial snapshot each time carefully not to overwrite existing data.