I just picked up a lightly used dt 240 rear hub (28 spoke) and want to build it up. I've installed, overhauled, and swapped nearly every component to be found on a road or mtb, but this will be my first wheel build.

I've largely "retired" from racing but still put in a lot of miles and do the occasional time trial. I'm not the fastest on the road, but am still very fit and can keep with the fast group rides in my area. I'm 6ft and 160.

On to the questions:

a) I'm leaning towards the dt swiss rr 585 rim for its durability, especially given the 28 spoke count. 2x lacing pattern. Any thoughts? Alternates to consider?

b) I'm looking to use bladed spokes. Sapim cx-ray seem to be widely available and frequently recommended. There are a number of DT swiss bladed spoke models available, but little description of what differentiates them (other than the very expensive bladed and double-butted aero-lites). Again, any recommendations?

c) I'll be building with brass nipples, but again am a bit overwhelmed by the options. DT swiss has a number of variations, but again doesn't have much information available on what differentiates them.

d) Any recommendations about where to get the components from? LBS doesn't have any of the parts in stock.

Thanks in advance for any thoughts and recommendations, either on the parts or the build!