The listing was in the USA......from memory it was going for around $500. Unused in original box.
Youre right, anything can probably be repaired although the faceplate is factory sealed. If its like the CZ20/21 design then access is actually through the battery compartment after removing the screws.
I think the pulse delay was a bit higher than other PIs.......probably around the 25us mark. This can be a good thing as it cancels out much of the moving saltwater signal but also the smaller thin gold rings.
Tony