Here appears to be an industrialized RPi-5 fully assembled with several important additional systems:
EDATEC ED-IPC3020-04320 Industrialized Raspberry RPi-5 * Externally accessible PCIe M.2 SSD * RS-232 Port * RS-485 Port * Buzzer * Stereo Audio I/O two 3.5mm audio jacks * RTC SuperCAP and CR1220 Battery Backup * Fanless Design
$165.00 Selections ED-IPC3020-08320 ED-IPC3020-04320 ED-IPC3020-08001 ED-IPC3020-08002 Ship to California, United States Delivery Shipping: $19.24 Estimated delivery between Jan 08 - Jan 16 ?Collect a $1.00 coupon for late delivery
I expect EDATEC won't have the RPi-5 on hand to fulfill the order for a while as the RPi Foundation production reaches full capacity.