To anyone interested, I went through the process of migrating a save from v0.16 to v1.1. The mod still doesn't work, but at least the level is there and is playable... there's just no added perks like huge stack size.. If anyone would like to play this map again, I don't mind sharing...

uh..
I was just about to try to get the mod running again, until I was finally in the game and the game told me that the map version is too old.... (had just put the items folder out, because there were so many flags that no longer exist).
In other words, I would be very happy if you could share the map.

Sorry for taking so long to get back to you.. I'll be happy to share it of course... only question I have is how do I do so? lol

No big deal. I've played a few other modpacks in the meantime. (I really have a problem with finishing modpacks [At least to the point where it says that you have completed the game]).
To the question of how you can give me the data. You could for example upload the whole thing here (https://wetransfer.com) and write me the link afterwards. The site is really handy, because you are not forced to make an account and all uploaded data will be deleted from their servers after 14 days. So super handy if you want to send something quickly to someone.

Oh and don't be surprised if you go into the forum again, because I wrote to you there too, because I wasn't sure where you would see the message first.

hey...
I'm going away today until the beginning of November. So if you get in touch again in the meantime, don't be surprised if I don't answer.

https://mods.factorio.com/mod/Factrain_Reborn here ya go

brah... epic. thank you kindly!