if your in any dout of the engines history i would change the conrod as a matter of corse, for the sake of 15-20 dollars, coz if it goes it will cost you a lot more than that.
i check the big end pin on the crank with digital calipers, check for slight flat spots.
with the crank in place, check for any up n down movement, if theres excessive movement the bearings are on the way out
Shepherd V10 Velox Idm evo 4
Shepherd V8 velox Idm evo 4