How difficult would it be to copy router settings from a ccr1009-8g-1s that is EOL to a ccr1036-12g-4s ??  if three ISP's  are connected as well as two crs125-24g-1s-in connected servicing 20 commercial customers each. Need to switch routers for additional sfp ports for a 950ft run to two additional switches, and another for a 500ft run to a radio to shoot some bandwidth to a close by building.

Just export the configuration using
That will create a CCR1009.rsc file which you can transfer (drag and drop from winbox works fine) to your PC, then to the new CCR1036.

Once the file is on the CCR1036, you can import it from a "blank" configuration state:
From that point on, you just need to configure the additional ports (CCR1009 has 8, whereas the 1036 has 12 + 3 additional SFPs)

Beware system users aren't transferred with exports, you should set the new admin password manually.

The keep-users parameter in the reset-configuration command makes sure the reset doesn't affect already existing system users, so you can set the admin password when setting the 1036 initially (upgrading ROS, firmware, etc).

Keep in mind that the CCR1009 has a switch chip for the first four ports...that part of the config won't be applicable anymore, but there's no reason the rest of the config shouldn't be valid.