I've just received my Hailea HC130A today, I can confirm the HC130a does have a PC type ball bearing fan shown below. I have also put a external temperature probe, only took less than a minute to do, it is connected with a SM2.54 connector which is readly available, the probe house the male side of the socket. there are two notch at the front bottom of the chiller that you can lead the probe cable out of the chiller, so no drilling of any sort needs to be done.
My unit was a little scratched at one side and near the panel, the scratch was expected for product coming from china, the radiator fins at some part was a little pushed in and bent, but I put then right so all is good. The chiller came with 4 hose connector, but are all same size, I think it should come with two size, but i'm alright with that.
I haven't full tested it yet as the chiller was sent to my work place, apparently the water pump I had at work was too weak to move the water, so I have to test it at home, the probe is working fine.
Thanks JayC and sdlTBfanUK for all your advice.