I have a 2006 SV650S (bought new) and just rolled 70,000 kms. It still runs well, but I also know my bike has been properly maintained. Maintenance schedule is: minor service every 6,000 kms (oil and lube), major service very 24,000 kms (valve check). The bike is quite durable and I personally would not be concerned with 60,000 kms so long as the bike looks good, looks like it's been properly maintained, and the owner checks out (not sketchy or wishy washy when asked about the bike/maintenance).
For reference:
My chain/sprocket sets (OEM sizing #525) have lasted me 30,000 kms each.
Valves checked at 24k, 48k, and 60k (just before a big trip) came back with no adjustment necessary, although they're creeping tighter. I expect the upcoming 72k check will also come back with no adjustment required, but by the next one it's likely.
Steering head bearings lasted me to about 50,000 kms.
I lived with the rear shock until about 50,000 kms, but it was completely sacked and sloppy by that point. Plenty of used and aftermarket upgrade options available though.
Brake pads are easy to replace, and run about $120 for a complete set ($42 per front set and $35 for the rear). I get about 30,000 kms from a set.
I haven't had any issues yet. Just regular maintenance and typical wear items.