Hey Xvx can you give a bit more in the way of requirements? For example, are you DIY where you can build your own or modify something that's close to what you need? Do you need stealth, how much space, how many watts and lamp type what is your ventilation access
I'd say first forget the lock and find the perfect cabinet. Then once you get the perfect cabinet, then figure out how to install a lock on it. Even if it means wrapping a chain around it and padlocking it.
I took something close and modified it to suit what I needed. Once it's going full bore I'll probably end up installing simple key locks which you can get at HD, Lowes, ACE, etc.
Good luck ... peace