The 19/20th century gun mod link -> http://www.fallout3nexus.com/downloads/file.php?id=5059
Choices of animation mods
1. ISA Ironsight Animations http://www.fallout3nexus.com/downloads/file.php?id=3795
2. Alexscorpions FPS Weapon Animations http://www.fallout3nexus.com/downloads/file.php?id=8059
3. RH Ironsights FOSE http://www.fallout3nexus.com/downloads/file.php?id=6938
I might be blind but none of those links really give what is compatible with what... I would do it myself, but my computer gets kinda cranky when lots of information is loaded and deleted in a shot amount of time.
All of those animation mods look promising, but I don't know which works with that weapon mod I like.