Hi Gdoyle!
The Single Configuration Files SCF could works for you, these are flat configuration files that you can modify previous to load the configuration, be noticed that the Network Routes are allocated on the bigip.conf file also if you import configuration some strings ( like passwords, secrets and passphrases) will be encrypted on the files and you must load the F5MKU from the origin device to the destination device to solve this. You could identify the encrypted strings cause begins with "$M".
K13408: Overview of single configuration files (11.x - 15.x)
K9420: Installing UCS files containing encrypted passwords