Hi everyone. For my 20th birthday, my father gave me his old Pentax K1000. I haven't really done much with it yet, but I think it may need a cleaning. There are speckles and things of that nature on the lenses and I think maybe on the internal mirrors. I live in the US, so how much is a proper cleaning at a professional camera store of the camera itself, it's basic lens, a zoom lens, wide angle, and doubler going to cost me. Ballpark estimates are fine. Also, are modern lenses able to fit this camera. The lenses I have are from the early 1980's, but I want to make sure that this camera isn't too out of date to where I can't find things that fit it. Thanks a lot.