Tony, I'll put you in touch with my mate Neal who was part of Team UKRM that raced exclusively in KRC endurance for the last few years. He's got plenty of experience in this and can give you loads of tips.
Tp Ali and Rattler I have spoken to Russell at Phase one and he would be willing to hire you the K3 1000. If you guys want to discus this pop down on a sat to the workshops and have a look.