Go to whoever's in charge of these things and say : "I can do this in $time the way things are currently set up. However, if you give me access to the tools I need, including the ability to get modules installed, it could be $time2, saving the company $lots."
It might be that they have a sysadmin install the modules for you; you might not need to do it on your own. But, based on some of the talk we've had in the chatterbox, you're trying to do a complicated thing that could be simplified a hundred fold if you had access to the correct tools.
Explain to management what you need, and why. Present your case in terms of money saved, or time saved.