273 ring source

anyone got a line on some STD (3.625") 273 rings? Rockauto, ebay, your stash? I might as well rering this while I got it out although the bores are fine, no ridge and the old rings are still in "one piece" Never ran the motor since I aquired it so the old ones may be good still but they have been in there 52 years....
Ford 272 (3.625") has 3/32, 3/32, 3/16 ring pack, $52 bucks?