Hmm, you make thing too hard. First of all, if your headers are hitting, why dont you just bend the headers to fit? Its a lot safer then removing tranny and motor mounts. secondly, whenever removing the mounts, always spray them, then heat them. take a good stout wrench and hit it free. Always decreases your chances of breakage. Or, if you have the compressor, use an impact wrench. But if it was me- I would bend the pipes and the headers. Have fun, that sounds like a decent car you have there.