All sorts of engine produces heat as that should not be a point of worry if your temperature needle remains in center and having said that it in no way does affects the bonnet paint job. I understand his concern, he needs to seal the small passages with silicon which lead the wirings inside the seating Cabin. Secondly have to look into Air Conditioning cooling capacity as that maybe seriously impaired due to built up of debris inside evaporator coil, improper gas charge and maybe clogged Air Conditioning filter inline with condenser. I have seen Air conditioning technicians charging the gas only by connecting low pressure gauge which is a wrong method as gas cannot be charged without taking readings from high pressure line and that is done in accordance with ambient temperature pressure chart which gives proper reference after taking measurements of ambient temperature outside and further taking the readings of vent temperatures inside. I am very positive, he maybe able to achieve much gain in performance only correcting issues with Air Conditioning settings. Further, if even done more properly by measure super cool and super heat, you will have a perfect working system.
