SF...you can run your ML with simple CAT 6 STP cable....this tip comes from our resident Marcus who has done this..and he's provided a wiring diagram....search it..
We are trying the Powerlink over CAT 6 STP now...and will report back on how that works...but Lexicon(M) does it...with powerlink...so that's postiive...
Basically, cut your ML cable in half attach RG45 (shielded) ends on both sides...and run the STP in the walls....