Cheap Mechanical Cameras?

I'm looking for a cheap mechanical camera to go go backpacking with, I already have a few nikon lenses i'd like to use on the trip so can you suggest a camera that is no more than about £20 that can use nikon lenses (or you can get an adapter for) and won't need batteries?

Added (1). Ok, I know the adapters cost about £20, so id want to pay much less if it wasn't a Nikon. I guess my budget would be £40 in total. I got my Nikon F90x for £35 and it works a treat (but it all electronic) so I'm on the lookout for something mechanical and cheap. I seen a Chinon and a Zenit EM for £5 and £10 recently, but I don't think you can use Nikon lenses on them or get adapters… So what other options are there? I'll be taking along a couple of toy cameras as well (my cosmic 35 and my Holga) but I l need an SlR I can use nikon lenses on… What is there?

Added (2). Got a Minolta SR3 with lenses and some other stuff into the bargain for £28. Also got a Nikon FM for £38 that I can use my Nikon lenses with. Don't know which one I'll take with me, so ill have a play with them and use them on different trips, Its all part of the fun!

and I have heard of the expression 'you get what you pay for' but I prefer 'You get what you make'… And… 'What you're asking isn't possible' … In yer face MixedMojo lol

Setting the bar pretty low, huh? If you find such a camera that you'd need an adapter for, the adapter would go over your £20 budget alone. I often wonder why everything has to be so cheap these days, hasn't anyone heard the saying, "you get what you pay for"? So you want a camera that is no more than £20, can use nikon lenses and doesn't need batteries. You don't strike me as someone who knows about cameras, which is fair enough. What you're asking isn't possible, not for that price (which I assume must be a typo). If not… Why don't you just buy a disposable camera, for your backpacking trip? You can get a 6 pack for £20 (I assume they have those where you live, the exchange rate calculation not withstanding). Anyway, they come with film, and when you're done you just drop them off at a minilab. You won't get to use your nikon lenses, but they don't need batteries. In the off chance you meant £200, (which is more believable), they all still use batteries, all but the oldest nikkormats which don't have meters, but you wouldn't want to deal with a camera with no meter, you'd have to calculate exposure on your own, or get a light meter. You can find manual focus nikon SLRs within a budget of £200, the FM and FE series come to mind. This is as good an example as I can give: http://www.adorama.com/...FM10U.html