Working with a little NetBeans application, I've generated the required sequence after canonical decomposition has been performed, with codepoints greater than 127 escaped:

\u0660
a
a\u0803
c
c\u0803
c\u0700
\u0601
\u0601\u0803
h
h\u0803
h\u0803\u0695
i
i\u0803
k
k\u0700
k\u0695
k\u0700\u0695
l
l\u0803
l\u0704
l\u0803\u0704
\u0620
\u0411\u0700
m
m\u0704
n
n\u0704
p
p\u0700
q
q\u0700
q\u0695
q\u0700\u0695
r
r\u0704
s
s\u0803
t
t\u0700
u
u\u0803
w
w\u0704
x
x\u0695
x\u0803
x\u0803\u0695
y
y\u0704
\u0661
\u0661\u0704
\u0661\u0695
\u0661\u0704\u0695

This is a good start for my comparator...