An iconic design and currently available for under £1 – the Dieter Rams-designed Braun PC 3-SV turntable.
Designed in 1959, the PC 3-SV is the turntable element of Rams' iconic SK 4 series. It's plinth-mounted, has all the vinyl speeds you will require and is apparently in 'fully working order' and 'excellent cosmetic condition', as well as being available on ebay right now at just 99 pence. Will it end on that? I suspect not, but it's worth a punt.
The seller also seems to specialise in Rams/Braun designs, so check out his other designs too for everything from heaters and fans through to coffee grinders and hair dryers.