Didn't know how to get paladin back as I specifically tried to get Oathbreaker on the one paladin I made. But if it really is just a matter of coin then it's not that different from BG1/2 where you can just keep throwing money at the temples' charity bowls to maintain a high reputation. As long as you don't drop too low (below 8 reputation I think?) you can keep getting away with any number of evil acts. And far as I know the first BG doesn't even have an option to redeem yourself once fallen, so this is progress of a sort.
