How to obtain RHEL 8 repo that contain ceph-fuse and install it?

We have planned a ceph upgrade to reef 18.2.7, and it says that Client Kernel drivers older than in Kernel 5.4 are not supported. There is 1 RHEL 8 machine with Kernel 4.18. I tried to mount cephfs anyway, and it really doesn't work. I get the message:

: /mnt: wrong fs type, bad option, bad superblock on 192.168.22.101,192.168.22.100,192.168.22.102:/backup, missing codepage or helper program, or other error.

So, the only option except upgrade to RHEL 9 (this machine is not in my dpt. it is some Bacula backup machine), is to use **ceph-fuse**. However, my colleague wasn't able to install it either with repo rhceph-5-tools-for-rhel-8-x86_64-rpms or with repo 6-tools-for-rhel-8-x86_64-rpms. Actually, this is described here: https://docs.redhat.com/en/documentation/red_hat_ceph_storage/8/html-single/file_system_guide/index#mounting-the-ceph-file-system-as-a-fuse-client_fs , but it seems that this repo doesn't exist. I tried with ceph-fuse rpm downloaded from https://download.ceph.com/ , but there are so many missing dependencies, that this is not feasible. Does anyone know a method to install ceph-fuse on RHEL 8?