I just thought a lot of Micro Seiki owners would be interested in this since it has been unavailable for so long. Available now for SX and RX models sourced from TechDas. Price reasonable at about $170.00US plus shipping.
https://ernsthaft.eu/en/products/micro-seiki-rx-series-vakuum-replacement-lips
Andrew
https://ernsthaft.eu/en/products/micro-seiki-rx-series-vakuum-replacement-lips
Andrew