ebay- there is a guy who will sell you a complete package of exactly the spokes you need,
pspiak@roadrunner.com "paul/ct"
I purchased from him before.
do remember the front spokes are one length,

the rear are 2 different lengths left and right

so you have 3 different lengths!

if you wanted straight 2.0 stainless used there are plenty wheels that have these, i have plenty..