4.X kernel on RHEL7 x86_64

Does anyone know how to get/install the kernel-alt package on a x86_64 system? I know that it is not officially supported, but this is for a test/development environment that requires the use of the 4.X kernel.

I have it working with CentOS7 (1804) and the kernel-ml from elrepo.org, and now would like to see if I can replicate a similar setup with RHEL7. Long-term this project will be built using RHEL (after 4.X is officially supported), so I would prefer to begin with RHEL instead of CentOS if possible.

Or is it possible to side-load / source compile a new kernel on RHEL?

Thanks in advance