I can not answer all the questions but I may give you some hints.
The best thing is to get a compass and look at the location. You need
to do it anyways so why not do it now. I don;t know the exact angles
but if u look at
Sadoun web page, it will give you all the information
you need to locate the Sat. ( i think it is : 142 + 15 =157
with elevation of 38.8 and polariization skew (the lnb tilted
-28.9 degree clockwise )..so with out looking at compass, it seems
south east .
As far as wiring, the cable u use is same as your reg cable. for the tv.
(i think it is called rg6). I would not invest any money to buy
flat cable or this other glass through cable (never heard of it). Just
talk to your landlord and pay for any damage if u drill a hole.
I am not sure what is the siding but most siding you can cover .
PS. drill a hole and put the dish and then drill another hole
for american flag. just discuss with him... u can always move ;-)
leo