Hi Aussie,
If you get the MT-2 it's an "AND" not an "OR".
Everybody I know that uses an MT-2 implies that the GE-7 should be bundle with the MT-2 as they would never considerer playing the MT-2 without the GE-7.
Your mileage may vary.
I've tried an ME-30 only once and the amount of distortion (if it's what your after) is not even in the same league as the MT-2. The MT-2 is definitively a tone sucker however and I doubt the ME-30 will be enough to eq it adequately...
What is it of the ME-30 distortion you don't like? If it's "thin-sounding" you may wanna try to use an
overdrive pedal like a TS-9 in front of it to warm the sound and fatten it a bit.
Just my two cents.