Just curious, why did you buy an auto if you wanted a manual? I mean, you're talking about spending all of this time/money now to do a swap b/c you were too eager to get what you wanted to begin with? IMHO, unless you've got a bunch of mods done that'd be hard to undo and transfer to a different car, I would consider a trade. If you go to resell the car at a later time, for whatever reason, a major modification like that would definitely depreciate the value of the car. I mean none of this offensively, just lending my opinion.