@Mik, I used play.grid to deploy an ubuntu official flist. I know Arbitrum wants you to run a docker image, but I could never get the chain data to persist, despite using correct syntax/mapping. So I just wanted a vanilla Ubuntu VM to install directly on to.
So here is some positive news. The explorer and I are apparently on speaking terms again and it is no longer taking an eternity or not working at all. Maybe that was just a temporary thing or somehow related to the machine I was using. Previously I had used an ssh key pair created with puttygen and then tried to use putty to ssh in. Just now, I spun up another the same way with default Ubuntu flist, but from a native Linux machine which I generated a key pair for my user. The machine spun up in seconds, or more like a minute, versus the literal hour(s) on my previous two attempts. So huge turn off now averted. Again, maybe it was me, but I was using the web ui, so I don’t know what I could have done to have caused the tremendously long deploy times. However, on this new instance, I still cannot ping the public ip. And on key exchange when trying to ssh in from the Linux terminal, I get a terminated by peer error. Also, seriously 32 thread and 256gb memory limits? Lol. That’s less than the machine I browse the web on….well, actually was having some issue so took a few dimms out and currently 128GB of ddr4-3600. Then again, I’m a fool. Most people don’t need a threadripper for web browsing. 
Also, the issue may be farmer based…possibly, as there is only one US based farm ID that has met the specs I was trying to get. Other say 1 public IP available, but then fail for lack of resource when you try to deploy.
I’m going to give this instance a couple more minutes in case it is still initializing, then destroy and maybe try a small instance from another farmer and see if I can at least access it. Honestly, for me personally, a lot of the validator or rpc nodes are obviously more efficient to deploy on my own bare metal, but as I am looking for innovative ways to get capacity to build a service on, other than just buying more servers, wanted to try this out. The issue is hardware performance. I need fast solana RPC nodes. They have reasonably stiff hardware requirements. Right now my dual 2697v3 w/512gb ddr4 and a gpu and nvme storage is in a battle. My threefold capacity I provide is based on the x20 series of poweredge servers, so v2 xeons and ddr3. Run a lot of personal workloads on that kind of hardware still and think very viable for use on the threefold grid, but there is a market for those farmers that have newer hardware. I’m not going to say more expensive, bc my racks weren’t cheap back when I got them. Lol.
Anyway, I digressed, but will keep you posted. I might also write a docker image for something and use terraform to try and deploy it. New to terraform but played with it a little and looks easy enough, at least for basics. Just have limited time to play.
Thanks for the positive reinforcement!
-Robert