Thank you all for the response - it is here not a mather of how it's best done. I just wanna now if it's possible and how.
So ETFbitcoin give me the right solution, THANKS!
Yes possible.
Not advisable though.
Do as Loyce says or if you want to do it the way ETF said make sure you don't have your IP binded to the other node.
I tried something similar between two separate VPS, one hosted on Alibaba and the other on AWS.
Keep onlynet=onion since it'll controll outgoing connections while fixing/removing the bind will take care of incoming connections.
New local node on the syncing side can be configured as :
txindex=1
connect=192.168.0.xxx:PORT
daemon=1
debug=mempool