360 Re-Ring? Temporary Engine. Will it run fer a year?

The old factory retainers/ keepers on my 340 heads used to routinely spin 65-7K in my old Landcruiser

I see nothing wrong with a re-ring, and depending on cylinder taper/ wear, it might just last a lot longer that a year.

But in this day and age, 125K is not a huge amount of miles, what makes you think you need to ring it?