To create your own Ethereum full node...

you need to have powerful server with a fast storage, fast internet connection and enough time to synchronize node with the network

Here is some benchmark results, regarding to the post from official Ethereum blog:

Full sync benchmark on two i3.2xlarge AWS EC2 instances ($0.624 per Hour, 8 cores, 61 GiB RAM, ephemeral volume 1.9 TiB NVMe SSD, if you stop the instance - you will lose all data)

with --cache=4096 --maxpeers=50 --syncmode=full

Using c5.xlarge instance with EBS io1 volume (Provisioned IOPS) you can spend more, than 5 weeks time and about $1325, AWS calculation is here

Here is a way to download data from the existing node and continue to sync:

Pre Requirements:

Hardware: at least 1.6 TB of free space on storage, 16GB RAM (but 8GB can work), 4 CPU cores (but 2 CPU cores can work)
Software: all we need are lftp and docker (here is the manual for Ubuntu):

sudo apt-get update -y

sudo apt-get install docker.io lftp -y

sudo usermod -aG docker $USER

sudo su - $USER

1. Download chaindata folder:

lftp -e "mirror ./chaindata ./chaindata --log=downloading.log" http://api.chaindata.club 2>&1 &
disown "%lftp"

To view downloading log (be ready to wait ~1 hour, while lftp utility indexing the remote folder):

tail -f downloading.log

2. Run Geth mounting the datadir folder:

mkdir -p full-ethereum-node/geth

mv chaindata full-ethereum-node/geth/

docker run -d --rm --name full-node-ethereum --ulimit nofile=10000:10000 -p 8545:8545 -p 30303:30303 -v $PWD/full-ethereum-node:/root/.ethereum ethereum/client-go --http --http.addr "0.0.0.0" --nousb --ipcdisable --syncmode full

To view geth log:

docker logs -f full-node-ethereum

3. To check actual state of the node:

docker run --rm -it ethereum/client-go --exec "eth.blockNumber" attach http://$(hostname -I | awk '{print $1}'):8545

4. Speed Up (boost) Ethereum Geth node syncing (click)

Current state of Ethereum node (click)