Cumulus Support

Hello everyone
First of all an introduction to what my system includes and what I want to achieve at some stage. I have a Vantage Pro2 wireless set up and an older version of Weatherlink + CumulusMX. I find CumulusMX far superior to Weatherlink and the continuing development of CumulusMX is second to none. However my technical abilities hold me back from progressing into the ultra modern World. I bought a Pi4 last year and I'm afraid it's still in the box through my lack of understanding and fear of getting myself into an unknown World of technology and hassle. So I'm comfortably with CumulusMX version 3091, soon to be CumulusMX3117, (PaulMy is currently working with me on that one). How technical is Pi4 for a novice like me - I'd like to be able to run CumulusMX 24/7, but this is not going to happen until I can get my head around interfacing it with my current set up. My son is more technical than I and it would be good if I can show him the nuts and bolts of getting Pi4 to work on my system.
Many thanks
http://leedsweathercentre.co.uk/

In that case I would have thought that the pre-built Raspberry Pi CumulusMX image would be ideal plus these installation instructions https://cumuluswiki.org/a/Raspberry_Pi_Image

Have to say I have no knowledge of the setting up of a pi but I followed the instructions and got it working back at the beginning of January, even managed to get putty working, though how I would copy all my old data over I have no idea, and if the pi installation gets updated that will be another challenge but hopefully have some more excellent instructions...