DFS on Panther Server

Hi all, I will be purchasing a couple of servers for two locations (1 sever each). The purpose of the machines is for file and printing services. I hope to set up a DFS (distributed file system) as each location needs to access (and edit) the same files but connections between the two buildings are God-aweful slow. I believe I can accomplish this by purchasing some syncing software and running batches every night. However, I would prefer something that is constantly updating. Is there any solution out there that will accomplish this for Panther server? Thank you.