adam whens your next home visit ? come and see me and i'll send you over to my mate who's got an eng recon workshop
you can bang them out but it's advisable to remove them with care !! and you dont have the right tools any way i know you have loads of hammers (seen them on the photo's ) but you also require the right sort of drifts and they have to be in alingnment with the seats you may have to do a quick recut on the seats after fitting the guides