I don't know where some of these are from; anyone care to enlighten me?
Ranged Smite Evil
I like the concept of a ranged smiting paladin, but I'm more of a fan of doing Mounted Archery with it rather than focusing so much on the smiting (simply b/c its easy to get a whole bunch of attacks with ranged combat styles, but you only have a limited number of smites each day).
Down your list:
...but with manyshot you apply your smite to all your attacks since its only one roll.
Might wanna dip a cleric level for the elf domain and a cha centric domain ability. Then look at Initiate of Milil to pick up bardsong and start firing a bow of songs for more cha synergy. In any case ordained champion might help in feat access. Oh, and elemental smite because its like acid man.