To do the job you need to lift the cam covers in the front, so they should be replaced. The timing cover gaskets obviously need to be replaced and while you have everything apart, I would recommend changing the oil filter adapter gasket, it’s going to fail, it’s not an if but a when.
2003 Black - sold, back again, and sold
2003 DBP/DC - #153 Whipple 3.4 (permanent garage art)
2003 DBP/LF - # 36 (sold)
2003 DBP/LF - # 205 (sold)
2004 Black - Trilogy #43
2003 Black - shitbox (sold)
2004 DTR - shitbox #2