Heres repetition of a question asked who knows how many times...but now its my turn

Looking to build up a set of wheels for my mandaric track bike which I ride on the streets. I have an idea of the parts I'll get, but not finalized. Would appreciate any input. Working from the middle:
-IRO hubs (probalby 32 hole, but maybe 36 is good for the extra strength?)
-14 gauge spokes, laced 3x (still need to calculate the length I need)
-brass nipples
-mavic ma3 rims (was looking at other options such as the open pros or velocity deep Vs, but the ma3s seem to fit my budget best)
-no idea on the tyres...I have a continental on the rear right now and it seems pertty nice.

This will be my first wheel build. Thanks for any ideas and suggestions on the parts.