The Caretakers uniform originally sold at the Bonahms auction in 1991.
The Panama hat was in a sale earlier this year, though went unsold. Its estimate then was £800 to £1,200.
As usual I have separated the items by Doctor era, and you can see the rest of the items here:
Here are just the lots relating to the Seventh Doctor era
Doctor Who: Paradise Towers, the Chief Caretaker's uniform,
1987, comprising a grey military-style jacket with matching trousers bearing label to the waistband inscribed in black ink Richard Briars (sic) 1, the jacket with black vinyl and silver braid detailing, matching belt and cap, as worn by Richard Briers in the serial.
Estimate £1,000 - 1,500
Sold for £2,000
Doctor Who: Sylvester McCoy - an original screen-used and signed trademark Panama hat, a silk Paisley handkerchief attached as a hatband, the inside signed and inscribed in black marker This belongs to Sylvester McCoy, inner band stamped Panama Type Bates 21A Jermyn Street London SW, Size 7.
Research indicates that this hat was likely to be that worn by Sylvester McCoy during Season 24 of 'Doctor Who', in 1987.
Estimate £600 - 800
Sold For £1,000