@Bzyk47
Could you take your home PC to the office for a week?
Take it to the office, and install XCP-ng on it
Migrate your VMs from ESXi to XCP-ng.
Install XCP-ng on your office server.
Migrate your VMs to your office server.
Do incremental backups of your VMs to your home pc.
Take your home PC back home.
This solves your bandwidth problem, lets you continue to operate during your migration, and doesn't require new hardware.