If you can stretch to 172.5mm I've got a SR Suntour Superbe chainse 130mm BCD, including rings (52/39). It's not from the original Suntour Superbe groupset, but a later pickup of the name by SR). Perfectly decent 90s chainset in good condition. Say £17 including postage.
Anyone got any old square taper double chainset about modern or vintage. 165/170 crank length. Preferably silver but on a budget.
Cheers,
Matt