Now my 2 cents. Well, most of it has been said before.
1: Let there be Light. That is were most Camera Rooms fail and it is by far the most important issue.
2: A good set of Tools, including a small solder station.
3: Lots of good Towels ( no cats or dogs on them :-) )
4: Place to stowaway the Gear, preferably lockable.
5: Rinse tank with a drying bench, just outside is a good idea. Atleast the drying bench should be under roof.
I personally do not really care about the floor or the benches. I prefer to put a towel on the bench anyway. It makes it soft and small things do not escape.
I am a bit ambigous about the Ventilator. It is a tradeoff between sweating and avoiding particles flying around in the air and "magnetically" landing on the just greased O-rings.
The Security is clearly an issue. A possible solution would be a door key that everybody gets and then a personal key to the locker( or one that does both). That way both the flexibility and the security is solved. However, the problem is to get those keys back. Would cardreaders work in Indonesia? Expensive?
A refrigerator with cold drinks and Beer, now we are talking Camera room
. That solves my eternal problem of first Camera then deco beer, finally someone has understood the dilemma :-).
/Erik