3rd Party NVR for use with RLC-411WS

I currently have 2 - RLC-411WS cameras for about 2 months now which are working great. Somehow though, I didn't realize there was a wireless system with an NVR - RLK4-210WB2 or I would have probably got that. I'm interested in adding an NVR type setup to my cameras and was wondering if something cheap like this would work with these cameras through ONVIF:

https://www.ebay.com/itm/4CH-H-264-1080P-HD-CCTV-NVR-Video-Recorder-Security-System-Email-Alarm-US-D5U8/301965194513?hash=item464e873511:g:rFYAAOSwSWJXRBd5

I already have a spare HDD to throw in it if that would work.

I also have the option of using a Core-i5 2400 3.10GHz desktop I could use solely as an NVR or FTP server to have the cameras record to.

I thought the NVR box would be the best way but I'm not sure.

Which do you think would be easier?

Bob

There is little possibility that the 3rd Party NVR in your link would work with RLC-411WS.