Scubapro's MK17 EVO First Stage is still in SP's NEW 22-23 Product Catalog for the EMEA region that just came out in combination with the S600 and C370 second stages in addition to first stage only. It hasn't disappeared from the SP product line yet and doesn't seem to be disappearing any time soon.
For the good folks in the US and want one, let me know
For the good folks in the US and want one, let me know