You could give my short quest mod, http://newvegasnexus.com/downloads/file.php?id=39807, a try.
The New Vegas Bounties and A World of Pain are my top two adventure mods.
Have to have FOMM and NVSE.
Recommend Project Nevada, WMX, Willow, and Arwen's NV Realism Tweaks.
I've also had very good luck with Classic Companion Configurator while using Arwen's NV Realism Tweaks if you want to have companions with you.
It does a lot of nice things, but my top two are:
One you have to heal up your companions now. They don't instant regenerate after combat.
Nothing like almost dying and holding your insides together with bailing wire and looking over and seeing Veronica at 100% and looking for more.
Really helps on the immersion factor and makes planning a lot more important.
And two you can hot key them in to a true Passive where they won't attack which makes stealthing around a lot easier and more fun.