Update for anyone interested. I ordered parts and approved the invoice. The parts they ordered for me are:
REAR APRON, HEPA, MY. (1619812-00-B)
DUCT, AIR INTAKE, MY (1499137-99-C)
HEPA FILTER. (1495167-96-B)
The hepa filter does seem to have an updated part number now (1495167-96-B). Hopefully...