Texecom R8 should do the job, but there's a host of others. Google the warehouses, Moreton, Wholesale Security etc. You should really consider spending some time before making a final decision. Don't go with a panel unless there are about ten recommendations for that panel... just one or two could be biased, you never know, and read all the specifications before buying. I notice in your post though, that you may consider more than one entry route, in my opinion this is not good practise. Best of luck. Tighten up the physical security at the rear of the property.