Time to update this thread. I've bought the Heed off Ebay(400 euro) but unfortunately upon arrival there were problems with it, which I found out to be a broken mains cable. This caused humm, crackle and noise.
Before I sent it back I've fiddled a bit with the cable and found a position in which I didn't have any problems. So I got the chance to listen to it with my gear.
It sounded good, but not that good, and a lot of that impression came from the fact it had more gain in the MM section than my Rega Fono. I think to hear the real merits of the Heed I would have to upgrade my front-end first: better cartridge and better arm (the Thorens itself has received all the mods already).
So I invested the refund immediately in buying an Okki Nokki after hesitating a whole afternoon to buy a Lehmann Black Cube SE off Ebay. But in the end I decided against it.
I'm waiting for the RCM right now, together with a whole bunch of first pressings bought in shops and off Ebay. I got my 3 squeeze bottles already lined up to be filled with the Okki Nokki fluid, the l'Art du Son fluid and the last one for plain distilled water. I've also ordered extra brushes: one Mobile Fidelity and one Clearaudio wet brush, together with a pack of Mobile Fidelity sleeves.
I'm sooooo ready to get cleaning
I'll let you know my findings when I've started cleaning!