Now is a great time (if in the US) to order an Accordina from Marcel Dreux (www.accordinas.com) thanks to the parity between the Dollar and the Euro. I ordered one of his Signature Ludovic Beier models along with a copy of Ludovic's tutorial method. The cost was under $2200 including shipping. I rounded it up to that amount for simplicity.
Payment from my bank to his was very easy using Xoom, a PayPal subsidiary. Note that his listed website prices include European Union VAT which is not charged when ordered from the States (though there may end up being a customs charge). Thus contact him for a final price.
This model that Ludovic helped design follows similar lines as the original Borel accordinas, including weighing just 1000 grams. Ludovic told me at DjangoFest 2019 that the Binchi stainless steel reeds need to be played in and that one need not hold back, unlike the old brass reeds found on an original Borel.
I did see an original Borel go for auction recently. Someone got if for only 300 Euro but there was no way to tell if it was entire on the inside, etc.
Marcel said that he is well stocked with reeds and all other supplies to make these, and that it would be month or less before mine was shipped. He has now made over 1200 of these wonderful instruments!