Manual extract Image from Server

i deactivated one of my Clients (cause it is outdated), and i want first extract a full set of Image-Backups (all Volumes for archiving and maybe using later in a VM) and then delete the entire Client.

I can see noch “download-image” function in the UI so i looked in the file-Structure. But since there are also incremental Image-Backups made i dont know for sure if i can simply copy the VHD files with the latest Date?

Thanks for any help.