First off, unless you're going to be desert running, save yourself a TON of cash and headache, and get 2.0 coilovers. Want a better reason? Go look at the available spring rates in a 3" spring vs. a 2.5" spring.
Plan on buying a good number of additional springs before you get it right if you're unwilling to have it weighed.
14" 200 over 16" 250 maybe?
