Biblatex style: use '=' in final bibliography

Question

I'm afraid this is a stupid question, but browsing Biblatex styles I could not find an answer. The editor of a book wants this from contributors:

TEXT
as noticed by Ross 2003, p. 75

---

FINAL BIBLIOGRAPHY
Ross 2003 = M. Ross, History of China, Berlin 2003

For the text I used a standard authortitle style, and it's all right. Is there a style for what the editor wants in the final list? It's a bit unusual, I'm afraid.

I add a MWE and an image of the output that I get with a normal authoryear style.

\documentclass{article}
\usepackage{filecontents}
\begin{filecontents}{\jobname.bib}
  @book{Ross86,
    author = {Ross, Mark},
    year = {1986},
     title = {History of {C}hina},
     location = {Berlin},
     publisher = {Bla Verlag},
  }
\end{filecontents}
%
\usepackage[style=authoryear,%
% personal options
doi=false,%
isbn=false,%
url=false,
]{biblatex}
% omit publisher:
\AtEveryBibitem{\clearlist{publisher}}
\addbibresource{\jobname.bib}
\begin{document}
This is very important, as noticed by \textcite[65]{Ross86}.
\printbibliography
\end{document}

Answer 1

Take my answer to Adding an [AuthorYear] block at the beginning of bibliography entries and replace my redefinition of the begentry bibmacro with the following redefinition:

\renewbibmacro*{begentry}{%
  \printtext{%
    \begingroup
    \defcounter{maxnames}{\value{mymaxcitenames}}%
    \printnames{labelname}%
    \setunit{\nameyeardelim}%
    \usebibmacro{cite:labelyear+extrayear}%
    \endgroup
    }%
  \addspace=\addspace
}