@azibux1 , I've recently installed a 2342 (my first foray in to CCTV and networking to an extent) and whilst I'm still fettling with settings and reducing motion sensitivity and zones I've found several GB to be plenty for the entire days worth of triggered activation on the highest quality/fps settings.
Do you need constant recording?
I'm probably not best placed to comment on suitability of application.
I've bought two cameras from Use-IP and have been impressed with the dispatch time and also Try & Buy return service. I'm tempted to pick up a few others from AliExpress though have read further back with some regional issues and Hik not providing direct support if ever needed if not purchased from an authorised reseller.
Would be interested to hear if there is a recommended seller overseas though.