Emu XL-7 & MP-7 User's Group

Hi all, does anyone have the capabilities to make roms for xx7.last 
i checked, the blank roms were a bit pricey. i bought the xl7 hoping 
i could make a rom of vocal samples and my vintage synths i own. 
 is this possible? i dont plan on buying the emu sampler to do this 
yet, but has anyone tried this? if someone could do this i would pay 
to have a custom rom. especially if emu isnt producing more.thanks
                                                     mach