I think CORONER, VOIVOD, MORDRED, and the other three DEATHROW albums would be a good start. Then the debut WATCHTOWER album ENERGETIC DISASSEMBLY...Many of the NOISE INTERNATIONAL titles are out of circulation since SANCTUARY was acquired by UNIVERSAL.
BMG actually acquired Sanctuary Music and all it's master rights from Universal when the courts determined Universal had a monopoly or something of that nature. Universal was forced to sell off some of it's assets.
I am currently working on a reissue of the 4th Deathrow album, the one NOT on Noise Records.