got K1 and K3.. should I go for K5?

hi people

well I think the title says everything...

I do own a K3 and a K1m, and I'm curious about the K5...
I'm interested in the harmonic part of my K3, but it only can store 2
user definable waveforms made out of a maximum of 32 partials out of
128... partials can have just 0-31 amplitude values and no envelopes...

additive synthesis is something I'd like to work with...

I'd like to add a K5m in my collection: are K5 and K5m totally the
same machine? I ain't room for a K5 but my rack is almost void so
there's place for a "m"...

what about street prices? keep in mind I'm in europe, so prices will
be higher than america for sure, I know...

p.s.
I found out that there are fantastic editors for the K5 (Atari,
DOS...)... I tried some of the ones you've got in the files section..
I took a look at 'em with STEem and DOSBox emulators and they all
seems to work, but of course I ain't got a K5(m), so I don't know if
they're fully working...


bye

Fabio