Load European/German software to the ECU

Hello dear community, I am about to import my 2014 Softail Deluxe from the states. The hardware necessary for German approval as well as the data sheet from the TÜV etc. is already available. What is still missing is the suitable software version in the control unit. Before I demand from an official Harley dealer, where I can probably withdraw any unfinished things, I would like to listen here in the forum, who can help me with this. Or jema and knows who knows one who can help me… If the practical help comes from the Siegerland/Sauerland/Kölner room, the better. A software flash seems to me the best. The purchase of a suitable ECU, whether new or used, goes after all something in the money. Perhaps enough for a license also a loan. Oops, the last sentence I did not write But thank you and good ride! Thomas