Climing-wise, I grew up in BFE with only a few choss piles available for TRs. My best friend and I sat down with a book on top of the choss and managed to figure it out. We erred on the side of overkill, took 2 hours to set up the first one and are still alive. If someone did happen across us who knew more than we did, we sponged info. It is possible to do it on your own, if you engage your brain. There are very few mystical qualities to TR anchors, jsut some basic mechanical common sense.
oh yeah, and beware the complacency of the gym... those sodium lights can give a meaaaan sunburn...