Does anyone know where i can buy a lockbox or make one for my wildvirew extreme 4.0

Go to ebay and type "wildview security".
Several come up.
I think that the home-made ones that are sold on eBay are much better than the namebrand ones sold in stores.

here you go these are about the best lock boxes you can get.
http://www.nativeoutdoors.com/scouting_accessories.html#bearbox