Database growth causing issues sending backup over network
There is no need to ship over the entire database. In fact SQL Server has a built-in solution for exactly this scenario, namely log-shipping. With log-shipping you only need to send the full backup once and subsequently you send over the log backups. Log backups will only contain changes from the last log backup and thus be usually quite small. The stand-by database will be read-only, perfect for reporting and queries. The article linked contains a link at the end to a step-by-step guide how to set it up.