my cruiser has a missing clutch fork return spring. Its functional but rattles all around and i assume one day the rod will work loose of the plunger from the slave. Anyhow, does anyone have spares? or maybe an idea for a suitable sub? Suggestions anyone?

Go to your local harware store. Its a basic spring, about 1/2" in diameter with hooks on each end. If I remember correctly (just did mine) its about 5" long plus the hooks. I'd by a few of different lengths as they are usually 49 cents or so and try 'em.