So I've been thinking of getting a vintage slr to start using. They're inexpensive and simple to use, good qualities for me. I have a Ricoh kr-30sp, from the early 80's that I think works. I'm hoping it will take a picture once the batteries come in. If it doesn't, I'm unsure which one to get next. A canon ae-1 or a pentax k1000 are on the top of my list. What else would be a good one to have? I want something that is reliable and well aged. Something with enough features to keep me busy, but still have the simplicity of a vintage 35mm. What do you think?