Hardcore Street with Titanium Spokes?! For Serials do NOT use Titanium Spokes, if you want to save weight get Double Butted Spokes & Alloy Nipples. D.T Swiss ARE the best for Spokes & G-Sport offer the BEST Alloy Nipples. When you see Alloy Nipples a lot of them are just regular Nipples just made of a lighter & most importantly SOFTER material. The Taper Hex Alloy Nipples are just that Tapered & Hexed shaped which will postpone the eventually rounding off. I don't think it will prevent it but they will last a SHIT load longer than a regular Alloy Nipple.
For the Rims i would go with a Ribcage, If you can afford to pay the extra money for them, they are better. The Rollcage is basically a more affordable basic material Ribcage.
As for the Hubs, If you really want super strong street tough Hubs then you need to look into. BSD, G-Sport, Eclat, Odyssey Antigrams, Shadow Raptor & BTR & Tree Straight Pull (You'll need to their Spokes)
Also, If you want the strongest, long lasting Hub Guards you need to get Heat Treated Chromoly Guards. Some of the Hubs i mentioned do not offer them & a couple of them are releasing them in the not to distant future.
Something a long the lines of...
G-Sport Ribcage 36h Rim
Shadow Raptor 36h 3/8ths Front Hub
D.T Swiss Competition Double Butted Spokes x 36
G-Sport Taper Hex Alloy Nipples x 36
Shadow Conspiracy Heat Treated CRMO Hub Guard x 2
G-Sport Ribcage 36h Rim
Shadow BTR 36h 9t Female Cassette Hub
D.T Swiss Competition Double Butted Spokes x 36
G-Sport Taper Hex Alloy Nipples x 36
Shadow Conspiracy Heat Treated CRMO Hub Guard
Shadow Conspiracy Heat Treated Drive Side Guard
Pretty bomb proof street Wheelset right there!