Node Newb – Raspberry Pi 4

I'm trying to get a Ravencoin node setup with a Raspberry Pi 4 I have laying around. Minimal experience with Raspberry Pi's and Linux.

1. Running Raspberry Pi OS Lite (Debian no desktop)
2. Followed this to setup the node: https://github.com/Mynima/Ravencoin_Node_RaspberryPi
3. Selected node version 4.3.2.1 during above install and upgraded Pi OS
4. I was able to run 'ravend &' to start the node
5. I know it takes a long time to sync, so I wanted to manually add node IPs that are local/reliable from https://www.ravennodes.com/nodes/. When trying to add a node I get this:
   pi@raspberrypi:~ $ ravend -addnode=208.72.58.214
   Error: Cannot obtain a lock on data directory /home/pi/.raven. Raven Core is probably already running.
6. However, when running 'ravend-cli stop', the command is not found (confirmed by going into ravend-cli help message.
7. I also saw there was a way to download from RavenLand to help speed up the sync, but I just get 404 errors to any of the ravenland.org pages.

Any help would be greatly appreciated. At a minimum I should be able to stop ravend and add nodes, but can't seem to figure it out. Thanks!