[Tex/LaTex] scrpage2 headers in classic thesis

Question

I am trying to modify the headers in the classicthesis document class, which uses {scrpage2} of koma-script. What I want to have is no number in the sections header on the odd page. I have looked on the questions here and found some answer that I tried. However, the result is that there still appear numbers, albeit 0 for the section and the chapter number. (example: 0.0 in the introduction, and 1.0, 2.0 etc. for chapter 1, chapter 2).

Also, I would like to make the unnumbered chapters such as "Introduction", "Conclusion", and "bibliography" in small caps as the regular chapters.

MWE:

  \documentclass{scrbook}

\PassOptionsToPackage{automark}{scrpage2}
\RequirePackage{scrpage2} 
\clearscrheadings
\setheadsepline{0pt}
\ifthenelse{\boolean{@nochapters}}
    {\relax}
    {\renewcommand{\chaptermark}[1]{\markboth{\spacedlowsmallcaps{#1}}   {\spacedlowsmallcaps{#1}}}}
\renewcommand{\sectionmark}[1]{\markright{\thesection\enspace\spacedlowsmallcaps{#1}}} 
\lehead{\mbox{\llap{\small\thepage\kern2em}\headmark\hfil}}
\rohead{\mbox{\hfil{\headmark}\rlap{\small\kern2em\thepage}}}
\renewcommand{\headfont}{\small}  
   \DeclareRobustCommand{\fixBothHeadlines}[2]{} 
    \def\toc@heading{%
        \ifthenelse{\boolean{@nochapters}}%
        {\section*{\contentsname}}%nochapters
        {\chapter*{\contentsname}}%chapters
        \@mkboth{\spacedlowsmallcaps{\contentsname}}{\spacedlowsmallcaps{\contentsname}}}

    \usepackage[english]{babel}
 \usepackage{blindtext}

\begin{document}
\blinddocument
\Blinddocument

\end{document}      

I get these results:

Answer 1

I've found a way to make it work, but it's by specifying manually every single entry (which is fastidious). I enter the following:

    \addchap{Introduction: On Cosmopolitanism}
    \markboth{\MakeUppercase{\spacedlowsmallcaps{Introduction:}}}{\MakeUppercase{\spacedlowsmallcaps{On Cosmopolitanism}}}

Same for the section:

    \addsec{Cosmopolitan theory}
    \markboth{\MakeUppercase{\spacedlowsmallcaps{Introduction: On Cosmopolitanism}}}{\MakeUppercase{\spacedlowsmallcaps{Cosmopolitan Theory}}}