Greetings,
"Ubunutu expert" and ETH Staker here.
I'm happy to help you with your full ETH node, but I have some questions about the use case and the server.
Without minimum 500G SSD storage there is no point to start this. SSD is a must, as the syncing process will lag, fall behind using traditional disks, and the size of my current node is almost 370G.
If you think we can work together feel free to write me.
Best regards,
Peter.-