Am wanting a first road bike to dip my toe into group cycling after riding a hybrid just to work and back for several years, I'm 6'3" so need an XL frame.

I've read the road.cc article on sub-£500 bikes, but would rather get something used which was nicer originally (ie, good quality components), than a new cheap bike. Should be possible for sub-300 I hope!

Can collect anywhere near London (I'm near Kingston).