Oh, dear - you just missed THE MOTHER of all bargains on the DSC:
But its NOT been collected yet?
There is also ANOTHER ST4s for sale in the 'For Sale' section - on DSC too!
Not much to go wrong with the ST series, from memory:
LCD Clock/fuel gauge misting & water lock in.
Fuel gauge erratic (level tube in tank)
VERY POOR HIGHLIGHTS (I put HID on mine)
Some rocker issues - but few, thankfully.
Water getting into main electrical connectors
Fairings are a PAIN to get on/off (but NOT an issue for a cafe job I imagine).
Steering & head bearings only lasted 20K on my bike.
Batteries get a HARD life.
Good luck