OK - I'll let you know when I lose my senses! ;)
I decided to keep the GS2, and sell my Seagull S6 folk-sized acoustic, to try and save up towards a Radiator. I found them for £269 in a shop in Crawley, Sussex, so I may be able to get something close to that for the Seagull.
I figured owning two acoustic guitars was at least 1 too many, seeing as I rarely play acoustic.