Interestingly the Chris King Manual for Maintenance of R45's doesn't suggest any caution beyond: inspection of spoke elbows for lack of forming ridge, use of locking nipples and following spoke manufacturers recommendations with regard to spoke tension.

65kg sounds awfully light. I would be surprised if they were to design a front hub as recently as the R45 was designed and not make it compatible with radial lacing to reasonable limits (i.e. 120kgf). Hmmmm,..... who in customer support did you talk to?