Just out of curiosity I just looked on the US amazon store Elegoo's shop has replacement Saturn vat's for delivery as early as tomorrow.

https://www.amazon.com/ELEGOO-Saturn-Printer-Pre-Installed-Wrench/dp/B08NSL97F3

ELEGOO Metal Resin Tank for ELEGOO Saturn 3D Printer, FEP Pre-Installed, with Lid and 3 Allen Wrench, Resin Vat for ELEGOO Saturn https://www.amazon.com/dp/B08NSL97F3/ref=cm_sw_r_apan_glt_fabc_1SAYSVGSR24QZMX8V4BP

Sold out, but there's the link