There are far less expensive solutions using one of the best SSD circuitries consumers can currently buy. The key is to stop trying to buy expensive all-in-one solutions from companies that have grown accustomed to Mac users being gullible simpletons that you can easily rip off.
Bottom line, get a NVMe Samsung blade (970 EVO Plus) and a solid TB3 enclosure along with it. Assemble in 30 seconds. Done.