...dress up wasteland inhabitants. For example: I would like to visit Bigtown and give everyone Enclave armor and weapons so that they can fend against supermutants and MMM spawns, and I would put the modified FEV vial in one of Red's containers so that it serves as Bigtown's prize and responsibility. I would need to access their inventory and some way to encourage them to equip the items given. Lucas Simms needs to lose that duster and get some combat armor and a slouch hat, Cherry could use some real clothes to lose the ho-factor and blend into her new chapter at Rivet City, and the slavers at Paradise Falls would look much better in Pitt gear.

There are so many clothing mods available at nexus and so many npcs in Fallout 3 available to show them off. What mod/s would I need to achieve this? Reverse pickpocketing needs a 0 weight item, right? There is the Magic Fingers Perk mod, but it requires 100 Sneak but I never level that skill past 40.

http://www.fallout3nexus.com/downloads/file.php?id=3284- take their stuff and give them something shiny and new

And no, items don't need to be zero-weight to be reverse pickpocketed in Fallout. They just need to have better stats than what the npc is wearing to be equipped.