Yes, drawing 29" with a 55#@28" bow, you should be right in that #57-#58 ballpark.
Cut one of those 4560's to 30" (measured from the nock throat to the front of the arrow w/o insert installed) and give it a try. Taking those couple extra inches off will stiffen the spine considerably and it might well work for you. If not, a carbon of 5570/6075 cut to 31" or a 30"-31" 2117 alum should work well..
Forgot to ask the obvious, but are you shooting off the shelf, and are your arrows fletched with feathers?