is this convertible or even viable?
Iaijutsu Focus (Cha)
This skill allows you to channel your chi more effectively when making an attack. Whenever you are making an attack roll immediately after drawing a weapon and your target is flat-footed, you may make an Iaijutsu Focus check as a free action. The results of the roll determine the amount of additional damage done, as shown on the following table:
This bonus damage stacks with sneak attack, sudden strike, et cetera. Note that in an iaijutsu duel the character who loses initiative is flatfooted, and thus a valid target for sneak attack.
Action: Not applicable; Iaijutsu Focus checks are made at the beginning of a surprise round or as part of an attack, and are therefore not actions in and of themselves.
Retry: Against inanimate objects, yes. In a formal duel or combat situation, generally not, unless the requirements for using the skill
(sheathed weapon, flat-footed opponent) somehow come about again.