ya thats a members car on here,car has some good mods on it if I recall.
6,000 seems far if its nice,good shape etc.
just test drive it,make sure the suspension is good,no abnormal noises,check to see how clean the oil is,how the clutch grabs,etc
I wouldnt worry about the miles,these cars have a good stout drive train.
also make sure everything works,heat,ac,cruse,no blown speakers,stuff like that.
04-Stage 3 set up,zzp 2.9 inch pulley, 42lb injectors,hp tuners tuned.aftermarket zzp header to a 3" exit,zzp 3" downpipe with a highflow cat to a 2.5 exit and trubendz 2.5" catback exhaust with a borla muffler.lowering springs,gm stage2 clutch,B&M short throw shifter.
Ingalls "stiffy" engine torque damper.cobra heat exchanger,stage 2 axels,after-market ,motor and trans mounts.