Just make sure when you oil it you use something thick and sticky to ensure it retains an oily film over the whole surface to prevent corrosion. I work as a cam grinder and we use this to treat all our cams before packing (dunking in a tankful, lifting out and letting them drain) and we have finished cams sitting on the shelf that were coated several years ago and are still fine. There are several other products I know of designed for this purpose, to leave a protective coating that can later be washed off, but being a fair way from you I don't know what brands are available in your neck of the woods. A good auto parts or hardware store should stock something suitable. I used this to coat the bores in an engine block I had honed about 8 years ago, and it had been sitting in the shed under a sheet since then, without any corrosion. Other stuff I have sprayed with a 'regular' water dispersant spray have started to rust in the same shed in months, as the coating tends to thin over time even if the item is not disturbed, so it seems vital to ensure whatever you use is designed to leave a film that stays intact.
I like the PVC pipe idea too - protects the cam from bumps, scratches etc. and the lifters can be stored with it. I would cap the ends but drill some vent holes in the pipe or the caps to stop moisture accumulating inside.
(and make sure wherever you store it, there isn't a leaky roof above - I lost probably 20+ spare alternators, a dozen or more spare starters and some other bits and pieces that were down the back of the shed when the roof overhaed sprung a small leak, and the lot gradually rusted into one big lump I had to break apart with a sledgehammer to throw away)
