There is a big swap meet Sunday at the El Torreon Ballroom, in Union Hill at 31st and Gillham. Lots of bikes, vintage stuff parts, accessories, etc. Sounds like it's worth checking out. The thing is supposed to start at 7 or 8:00 a.m. and go until early afternoon.
Hey that meet has been moved to the square in Independence, check the posts on craigslist and shwinn forum