IMHO it would be respectful to the animal if he learnt how to prepare the trophy himself. I'm not local at all but if I were I'd happily show him how to go about it, he could borrow my boiling pot, saw, jig and even my power washer. I'm sure some of the fine chaps on here who are in the South East would do the same for a novice stalker.
Sorry if it seems like a rant but I genuinely feel he'd benefit from learning how to prepare a head himself and that he will get a better response/save himself some money if he frames his question to the SD like that.
ATB Nick