Re:
First things first I would replace all the cabling, while doing this I would clean all the brakes and gears, I did notice one thing the right gear lever mount looks broken :?: If it is I would put a wanted ad out for a replacement, personally I would also dump the stem in favour of something lighter, but as I say that is just a personal thing... Clean the frame using Autosol or other metal polish just be gentle as the frame is anodised.