Don't know if it's only me but once I done the bedroll and hammer quest once the trader quest shows up I get a null message I remove the quest it stops
This is on a fresh install
Since your using the 7dtd mod launcher you need to uncheck the auto update it will always keep the files updated even if your the one making the changes
Advantuly you will have all the classes so it don't mater I started out as builder then tradesman cause tradesman is very good at gathering with the diamond axe and pick
I use nitrado server and works good all I did was ftp the files drop and drop in the 7days to die folder replace everything of your using the big bag mod make sure to disable the eac in the options