There are a few ways to migrate things by hand:
https://discourse.cubecoders.com/t/migrating-instances-to-a-new-machine/532/8
https://discourse.cubecoders.com/t/moving-instances-from-one-amp-server-to-another-with-existing-instances/18341
If you don’t have any instances on the new install you can run through the first post, otherwise the second post should get you rolling.