DIY cheapie, high res, nigh vision, surveilance cam system.
Sorry, GW.
Camera security systems are expensive.
For others considering a security cam system you might want to try this option if you have DIY skills.
12 vdc power supply - $20.
low voltage wire 100 ft - $30.
dash cam(s) - 1080p, IR night vision, looping capable - $20-$25 each.
16 gig microSD card(s) 1 for each dash cam - $8.
Mics: sealant spray, plastic bags, nylon cable ties, open containers (plastic food boxes will do)
You can figure it out. Be sure to mark the positive & negative leads on the cams before cutting off the auto power plug.
Turn the box on its side and aim the cam out the opening. Dash cams don't mind the temps, but they hate the rain.
Seal the connections good with sealant and plastic with cable ties if you have to bury the connections.
Be sure the amps of the power supply supports the number of cams you parallel into the low voltage line.
Be sure the dash cam is the looping kind.
There you go. Complete system about $80 for 1 cam. Add $30 for each additional cam.