If you’re in London and have some spare cash, you could pick up some gear owned by Rory Gallagher. According to Guitar Collecting, New Kings Road Vintage Guitar Emporium is offering a selection of guitars and amps formerly belonging to the Irish musician. From GC:
There are some great pieces that have been used live and in the studio by Rory, and this a truly unique opportunity, to purchase some of his authentic equipment.
Read more and see some Gallagher guitars at GC.