A different stem and rearranging spacers or go with Ride2 crank shorteners. For < $120 you can try 170mm - 24 = 146mm cranks. According to the seminal research in this area (Jim Martin* at the University of Utah) that is used to justify making fewer options available, going as low as 145mm may actually help put you closer to your peak efficiency. In the above example, you'd raise the seat 24mm and your knees at TDC will be less bent.
*
http://www.ncbi.nlm.nih.gov/pubmed/11417428