I’ve already thought about this more than once. I agree that at the present time we have very favorable conditions for purchasing tosogu.
https://nihonto.com/nakai-koshirae/
I’ve already cited this article as an example before - it shows very clearly that for each option, such as nanako, inlay with specific metals, additional carving - there was a substantial surcharge for every request.
Now, however, the work can cost less than the price of the metal itself, simply because demand for these items is low. But if we ask someone to recreate something comparable to the work of a great master, as Ford Hallam did, the price would really surprise us and would most likely be higher than that of an Edo-period piece.