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

i'm into dance music and i want to buy the xl-7 but i like the color 
of the mp-7 much better.if i buy the mp-7 and buy the optional xl-7 
rom chip will i have a purple xl-7.does the rom chip for the xl-7 
offer ALL the presets and instrument sounds that i would get if i 
bought the xl-7 command station.if i don't get EVERY sound the xl-7 
offers by buying the mp-7 and buying the xl-7 rom chip i would rather 
just deal with the color yellow and not sacrifice losing any 
sounds.please let me know