I would like a mod to allow me to open locked doors and safes with a an appropriate tool and strength check, for instance if your strength is 4 and you have a tire iron you can open very easy locks, with strength 5 and a crowbar (not sure if crowbars were in the vanilla game or not) you can open easy, strength 6 and crowbar open mediums, 7 and a sledge hammer opens hard and 8 and higher and a super sledge opens very hard locks.

I know a little bit about modding but I wouldn't even know how to start on something like this :/