I’ve got no experience with proxmox so your mileage may vary regarding that while install

The only thing that is concerning with your situation is the mental energy as problems arise and not all will have an easy solution

As long as your ok with the full setup taking months? to complete go for it. It took me 2 days to sort out a working service that got mistakenly rebooted. 1 1/2 days on not standard problem and the other 1/2 on me breaking stuff trying to fix the first half

I recommend giving it a shot it’s great once it’s working