I'm fortunate to have a monster TL30 that I got for a song...cost more to move it than what I paid. It broke the movers wench on the first attempt & weighs between 4k-5klbs. Hinges on the door are as big a beer can & the thing comes from Pretoria South Africa & they think it was made to store diamonds. Google didn't have much 411.

The AMSEC B&F series are where you should spend the $$$$ if you have decent collection.