%% Just use the original class and pass the options
\LoadClassWithOptions{report}
+% Place page number at the outer foot edge of content pages
+\usepackage[pagestyles]{titlesec}
+\newpagestyle{mystyle}{\setfoot[\thepage][][]{}{}{\thepage}}
+\pagestyle{mystyle}
+
\renewcommand{\baselinestretch}{1.2}
\makeatletter
}%
{\large} % unnumbered format
{\hfill \contentspage} % filler-page-format, e.g dots
+
+% We have many short chapters. Avoid them all starting on right-side
+% pages, as it wastes too much space
+\let\cleardoublepage\clearpage