Using only the teleport spell, what are the ways to reduce the chance of failure for a caster? Aka chance of landing in the wrong place or a misshap of the spell. In other words I want to maximize landing "On Target" with the spell
We're playing in a very small map, not small enough to as teleport being useless, but small enough that a misshap can kill the entire party.
I know that the greater teleport spell exists but I can't access it at the moment and its going to be a long while until I can.
Resources: We can use any legal 3.5 book (including dragon magazine but that would be more difficult to put through). I have one at the highest 2 feats I can spend on this and I have money to spend on it, we're level 10, I'm a CL 9 conjurer malconvoker. We're under half WPL but I might be able to increase the money for teleportation items.