Get a cheap camera in good condition and play with it first. LF isn't for everyone and dropping a boatload of $$ from the get go will only add to your frustrations, IMHO. If your intentions are backpacking, then a Shen or any of the more modern japanese woodys should serve you just fine. If you find a need for plastic camera you can upgrade later and your lens & film holders and the rest of your "kit" can transfer over to the new camera.
My 2-cents anyway