One last run for nostalgia: Best way to play 7.1/7.4 single player on my PC?

[MiaFH]

Hello, I know a variation of this question has been asked before, but I need something more specific and the easiest way to achieve it. I’ve been away from the OT community and OT Land for a while and haven’t played in more than a year, but I want to do one last run for nostalgia. I want to play by myself locally on my PC. I know how to compile, modify the source, and script a little, but I need help putting everything together.

1. I want to play the most stable version that stays true to the original game, preferably 7.1 or 7.4, including the map. Where should I start? Should I use a distribution or source? I want to avoid anything with malware.
2. What would be the easiest way to set this up?
3. I may edit it a little later, such as adding a new vocation, removing the summon limit, and adding new creatures to summon.