i concur my dad's GH had less than 130,000 on the clock(slightly less on the motor, due to a replacement under warranty on its first service!!!) when the welsh plugs went, i fixed them and a week later the head gasket went on the f@$ker, i was not happy.
other than that it was a nice car :D
anyways i digress looking good especially for $300, eh most sigma's i've seen tend to have rust on the passenger side front quarter, its like they came out of the factory with it :)