WTD: Basic singlespeed bits

Hi, just found my younger sister a little Charge Plug and need some basic cockpit bits to take it from drops an upright setup that'll be more comfortable for her. Looking for:

1. some backswept risers (silver pref)
   
2. crosstop brake levers
   
3. nice grips
   
4. SS chain (used/new fine)
   
5. helmet
   
6. lights (rear particularly)
   
7. lock
   
   

Based in SE5, local preferred, anything considered. Thanks!

(edited to include additions)