Here's a solution: using the xparse package I defined a new command \ChapIma with one optional argument and two mandatory arguments; the optional argument will be the text used for the ToC; the first mandatory argument is the text for the document, and the third mandatory argument is the name of the file containing the corresponding image.
The titlesec package was used to customize the chapter title format.
I also defined another command \Caption, which behaves as the standard caption, but writes the text in the space reserved for marginal notes. This command must be invoked somewhere in the first line of text of the chapter.
The caption package was used to customize the caption in the marginal notes (suppressing the label).
The lettrine package was used to produce the drop cap.
I used the fancyhdr package (I couldn't make titlesec's pagestyles option behave well, so I had to use fancyhdr) to redefine the plain page; I also defined the page style for other pages.
\documentclass[twoside]{book}
\usepackage{xparse,ifthen}
\usepackage[calcwidth]{titlesec}
\usepackage{changepage}
\usepackage{graphicx}
\usepackage{caption}
\usepackage{fancyhdr}
\usepackage{marginnote}
\usepackage{lettrine}
\usepackage{lipsum}
\newlength\mylen
\DeclareDocumentCommand\ChapIma{omm}
{\let\cleardoublepage\relax
\ifthenelse{\isodd{\value{page}}}
{\mbox{}\clearpage}{\mbox{}\clearpage\mbox{}\clearpage}%
\resizebox{.9\textwidth}{.9\textheight}{\includegraphics{#3}}
\mbox{}\thispagestyle{empty}\clearpage
\IfNoValueTF{#1}{\chapter{#2}}{\chapter[#1]{#2}}
}
\DeclareDocumentCommand\Caption{om}
{\marginnote{\parbox{\marginparwidth}{%
\captionsetup[figure]{labelformat=empty}
\IfNoValueTF{#1}{\captionof{figure}{#2}}{\captionof{figure}[#1]{#2}}
}%
}%
}
\titleformat{\chapter}[display]
{\Huge\normalfont\sffamily}{}{2pc}
{\setlength\mylen{0pt}%
\addtolength\mylen{\marginparwidth}%
\addtolength\mylen{\marginparsep}\raggedleft
}
[\vspace{-20pt}%
{%
\begin{adjustwidth}{}{-\mylen}
\makebox[\linewidth][r]{%
\rule{\dimexpr\titlewidth+\mylen\relax}{0.4pt}%
}%
\end{adjustwidth}%
}%
]
\titlespacing*{\chapter}{0pt}{1cm}{7cm}
\renewcommand\chaptermark[1]{\markboth{#1}{}}
\fancypagestyle{plain}{%
\fancyhf{}
\fancyfoot[OR]{\sffamily\small\MakeUppercase{\leftmark}~~\oldstylenums{\thepage}}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0pt}
\fancyfootoffset[OR]{\dimexpr\marginparsep+\marginparwidth\relax}
}
\fancyhf{}
\fancyfootoffset[OR]{\dimexpr\marginparsep+\marginparwidth\relax}
\fancyfootoffset[EL]{\dimexpr\marginparsep+\marginparwidth\relax}
\fancyfoot[OR]{\small\sffamily\MakeUppercase{\leftmark}~~\oldstylenums{\thepage}}
\fancyfoot[EL]{\small\sffamily\oldstylenums{\thepage}~~\MakeUppercase{\rightmark}}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0pt}
\pagestyle{fancy}
\renewcommand\chaptermark[1]{\markboth{#1}{}}
\renewcommand\sectionmark[1]{\markright{#1}}
\begin{document}
\tableofcontents
\ChapIma{Preface}{ctanlion}
\lettrine{T}{his} is some initial text\Caption{This is the caption for the figure; this is just some test text}
\lipsum[1-5]
\ChapIma{Introduction}{ctanlion}
\lipsum[1]
\section{Qu'ran manuscripts}
\lipsum[1-14]
\end{document}
Here's an image of four pages of the resulting document:


The CTAN lion used in the example was drawn by Duane Bibby.