I don't have small door in any of my autogate. I find it to be a nuisance.
Use a reliable auto gate and don't have to worry about breakdown. Having a reliable installer is also important for after sales service. Any problem can be resolve quickly.

1800 price with keypad, siren and beam sensor???

why need add panic button on the auto gate when you already having it in your house alarm? Just use the alarm panic button. Anyway the siren or what ever it is called on the house alarm will be much louder as compared to the auto gate....
From what I was told, there are various model of the controller panel for DC Moto. Different controller board even for the same model. So, do check this out with your supplier/ installer. Probably this is also the reason for the price difference...
What ever it is I am a strong believer that having a reliable after service installer is important unless after the installation, you are able to get another installer to provide the maintenance service. I remember an incident one morning when I received a call from a friend saying the he could not drive out his car from the porch as he auto gate is faulty and even the manual override switch is not working. His was using the arm type. He was not able to contact his auto gate installer who has gone missing.

I suggest that you survey around 1st before you commit. There are plenty of suppliers.
If you need further clarification, PM.

Is it? My bro bought OAE autogate from them. He said ok & recommended me also. By the way, I'm looking for this DCMoto GFM-905 as well. My friend have contact that carry this brand. I will talk to him tomorrow & share it here if the price & service are right. 

Maybe the Sales Man is father of the KFC staff.

Both DCMOTO & Casa Asia are made in Penang. Casa is an offshoot of DCMoto.  CASA claims that they're improved on the DCMoto design.   If you listen to both motors in operation you'll find that the CASA system is quieter.

These above ground rotating arm systems are definitely an improvement over the underground systems as they are not prone to flooding.  However they have a more complicated gear system compare to telescopic armgate systems.

Make sure that you install a gate with a rolling/hopping code system for the remote.

stainless steel having an impact on feng shui... 
Maybe that's why one of my neighbour who is a strong believer in this, changed theirs...

RM200 is the cost for your installer to come service the gate once or twice.  many installers are engaging independent contractors to do a one time installation with no backup technicians to provide support. That's why there are so many one-man-show autogate companies which do not need an office or any full time staff to operate their business.