That's really difficult to answer. Could you be more specific about your tolerance? "Huge" means different things to different people, so start by giving us some dosages that you've taken of other Benzodiazepines, then we can give you some legit information.
It's just like any other drug. There are people who overdose on a single point of Heroin and there are people who won't even get "well" doing 10 times that. For the record, Benzodiazepines as a single agent are not going to cause a lethal overdose. It's only when they are combined with other depressants that they become dangerous. Make no mistake though, when taken with Alcohol or other depressants, they get dangerous quickly.
This doesn't mean Benzodiazepines aren't dangerous in their own right. I always tell people the biggest danger with Benzodiazepines often comes through blacking out and doing something stupid, say, drive a car, burglarize a house, start a fight with the wrong dude and get killed. Anyway, give us some more information and we can try to help you. At the end of the day, the only way you'll get solid information is by taking the drug and judging how it effects you, as everybody is different. Start small and work your way up incrementally.