Hi,
I would tend to go with Andy on this one. Galaxy is a high spec pro unit and as such is excellent..in the UK. If it's going to North Africa it may be better to set your sites on the Texecom. There are a lot of rooms, doors and windows, do you think it might be possible for him to give you a rough layout drawing to get an idea of the zones. It is not essential to contact every door, depending on the layout of course. There again we have to think about the location and intrusion probability. If the user is away from the premises quite often he may have to consider perimeter protection as well as internal. How close are the neighbours and are they reliable, i.e. can he count on them if the alarm activates when he's away from the premises. Is he able to install on a semi pro level ? if so, it might be worth packaging up some spare door contacts and pir's etc. Also sufficient cable, so a diagram is needed really. Having said all that, I may not have read the original post and comments correctly so please ignore if I've read it wrong. The standby battery is a major cause of problems IF it is allowed to deteriorate, it should be replaced every three or four years so he needs to be able to locate one in North Africa. That said, he might even be able to find spares. This sounds quite extensive, so I would tend to look at voltage drop on long runs. Had to do pretty much the same for a bod on Spain and another in Kenya. In Spain's case, it was wireless at his choosing, which resulted in a few problems, so I would tend to go for hard wired.
Take Care
Pantyvest