Think its down to how quick you want to sell it.
Belts done is a big plus, plus brakes.
I've just looked on Autotrader, prices are all over the place, but I always think you get what you pay for.
Garages are £2,500 - £2,000, one 06 is nearly £4,000, so I'd aim high and come down if no nibbles.
http://www.autotrader.co.uk/classifi...ge/3?logcode=p
Good luck with the sale.