He had quite a bit of rack gear live too - I remember him having an ADA MP1 and a Furman power conditioner, but can't remember what else. Definitely had the mk1 5150 head which sat on top of the rack.
Cabs - I seem to remember Boogie recitifier cabs? but I could be wrong.
Real shame about this band; once Mark had ditched the abysmal Another Cross II Bare lineup, Deviate especially and Trinity and the killer tours they were given should've turned him and the band into metal royalty but for some reason, never happened. Don't think the Megadeth-like costant line-up changes helped much.