I am really, really hoping someone has a neet trick for my problem.
I have three Unicode symbols I need to put inside my verbatim environment
├ ─ └
all others are not important to me and most definitely will not be. I am used to LaTeX and Texmaker and would want to avoid any shifts to new versions or alternative tools whatsoever at this point. Is there someone out there that can help me with this problem?

xelatexon the command line instead ofpdflatex. If you're usinglatex | dvips | ps2pdfbecause of postscript-y things,xelatexhandles them in a single pass (in my experience). – Sean Allred May 19 '15 at 16:14