I havent finished the setup, itll probably be most of this riding season before I buy everything...too many irons in the fire...or projects in line!

$173 for wheel - Shimano DH3N80 dynamo with 36h for rim brake, SunRingle CR18 silver 700c rim, Wheelsmith butted 2.0/1.7 silver spokes, Wheelsmith brass nipples
This was prebuilt by Universal Cycles. They have a great custom website where you can mix and match wheel components to your heart's content.

Converter for AC to DC power and to charge a battery pack- Cycle2Charge , M172N Bicycle Power Charge Controller USB , Sinewave Cycles Revolution
Costs range from $50-130


I havent decided on a converter. Probably 1 of the 3 linked above. The stem cap style is sleek for sure, but the Sinewave is waterproof and costs less.
I will use this for charging a powerbank and not for lights, so I wont need a more extensive setup compared to many who switch between lights and charging a powerbank.