Commercial cap specs for tesla cap

Hello fellow coilers,
I contacted NWL capacitors for a cap for a tesla coil application. They
sent me an email that I need to fill out ther cap form. If anyone out
ther could help me give them the specs they need it would be
appreciated. this is what they want to know: tolerance
          rated voltage
          peak current
          rms current
          duty cycle
          op. temperature
          voltage reversal
          ringing frequency
          maximum Ind.
          design life
          case style
Im using a 14.4KV/5kva piggy running up to 6-7KVA. They said they
couldnt build me a cap without all these specs. Im not an engineer so
Ill need some help.
Best Regards Jeff KD4LYH