1) go to mod folder: \SteamLibrary\steamapps\workshop\content\108600\3403180543\mods\BanditsWeekOne\42\media\lua\shared
2) open file "BWOEvents.lua"
3) find the line with "-- give some starting cash" (line 739)
4) change the number (25) in line "for i=1, 25 + ZombRand(60) do"
e.x. "for i=1, 500 + ZombRand(60) do" will give you minimum 500$ in start and up to 60$ randomly
5) don't work for the rest of your life, until you got eaten by the zombies
TIP: money weighs pretty much, so be careful with that