I want to set up my single player just like the multiplayer twinswords, but when I choose one of the twinsword mods im too close or something else.

What should I do?

go look at an official twinsword server, write down the needed information, and use setup commands or game setup and plug in the same values it's not that hard unless you're retarded..

Well everytime i set the gamerules they never save and reset to the normal

Go to single player

Type /set ed 290
/set mod TwinSword4.tbm
/set ds 1000
/set tf 50

Press escape and go to single player again

If you want it to save the above settings as default when you restart pop into options & tick 'remember game rules'

I did but it doesnt work.

However the settings to type in worked, tyvm

For future reference.