[Dimis]

Chassis #1741 is seemingly consistent with 2003 build out of SA.
But it doesn't tell us when the car was first finished or registered.
Either way if genuine 600miles, barring any accidents that may have bent stuff there wouldn't be too much wrong with it that can't be fixed.

Price dependent I wouldn't rule it out.
It's a reputable brand and factory built roller.
If she's straight then you're off to a good start.

If I was purchasing it, I'd do so knowing that I'd change all rubber hoses, bushing, grease and fluids (maybe even tyres).

I'd take my chances on the engine & driveline (& ultimately offer a price with this in mind).
If the engine or drive line failed, hell it wouldn't bother me much there, by that time I'd know what I wanted in my next engine and by changing all the other stuff I'd have gotten to know my car pretty well. (Which i think, is part of the fun of ownership).

Changing hoses, grease & fluids isn't something to fear. Almost any goose can do it, even me! And if you got, stuck the corner shop could help you for a small fee.

Either way worth investigating further.

Best of luck and enjoy the hunt.