My shock load was about £6k+VAT (CSE) and a new prop was £11k+VAT.
The prop could be bought for $9k from the USA (with perfectly good documents for a G-reg) but the moment "insurance" is mentioned, everybody rubs their hands
I don't think NM do dynamic balancing of anything; they certainly could not when I asked them. They weight match components. The prop can be dynamically balanced but that is a separate job; Worldwide Aviation at Bournemouth can do that.