New CCTV Setup with 32 CH + 16 CH NVR + 48 Cameras

[looney2ns]

I see , the price difference is quite big between NVR2216 and NVR5216, what about the 4 series? NVR4216-16P-I-12T is it good enough ?

Some products i cannot find on your ipcamtalk/aliexpress/amazon store . Can i contact you via Email for quotation ?

Yes, emailing Andy directly is best.
If you like, then he can send you an invoice through paypal, then if you agree, you pay that invoice with paypal.
I would agree with Andy, stick with the 5216 series of NVR's.