You can easily get the overhang tool from Kevin at KAB: http://www.kabusa.com/frameset.htm?/
In reference to the stock arm, they really can be modded to sound good. Jim Howard of Applied Fidelity uses silver wire that uses a solid core teflon coated silver electrode wiring used for medical instrumentation. Its double ground, annealed, teflon coated and takes some serious skill to solder because that 32 awg conductor likes to melt right into the solder. I heard some CD's of his set up that he sent me and it sounded great. I am picking up another SL 1200 MK II tomorrow for a decent price of $225 US and I am going to mod the stock arm on this one and see how it compares to my current set up. FWIW, I like Audio Origami's prices; I wish they had a branch here in the US.

