Advice, please, for new hearing aids and DIY Programming

Didn’t know there was an alternative, I have the NOAHLink Wireless
This forum post says that NoahLink is obsolete

They are not cheap, US299 on eBay is the best I have seen.
https://www.ebay.com/itm/1x-New-Noahlink-Wireless-Bluetooth-Hearing-Aid-Aids-Programmer-by-HIMSA-/173211943740