Hi Byron, I recently looked into re-tipping my Onyx and it was about $2K, but it comes back in a nice wooden box!! :)
Apparently when they "re-tip" it, the only thing that's original is the case, everything else is replaced so its essentially a new unit. I compared it to Rick's Urushi, it has the Koetsu house sound - very lush and romantic, so I suspect the Rosewood would be similar.