Should piston gudgeon pin retainers be replaced at rebuild?

What is the consensus from experienced engine builders on replacing the retainers of the piston gudgeon pins (wrist pins I think you call them ?). I am doing a budget rebuild on a 1967 273 with full floating rods. It will be a mild performance rebuild with mild solid cam, Weiand intake, headers etc, expecting about 290-300 HP. I am reusing the original pistons (using new rings/bearings of course) because not only are new ones hard to source now but the engine was in such amazing original condition when I disassembled it, pistons hardly worn and I got a hone on the bores and using some nice worked over conrods which have been sitting around for many years, been weight matched and shot peened and resized + ARP bolts.

The wrist pin retainers have been there nearly 50 years, they are just wire spring clips. They don't do much work but can they be a point of failure after a lot of miles and heat cycles?

I can just buy some new circlips but is it a good idea?, or necessary on a mild street driven engine?

thanks