On my 2005 PLUS 4 I have to take off the cowl, but a V6 is shorter than a 4 cyl and I guess you have more room, in this case it would no be necessary.
It dépends on the radiator. The critical part on my radiator was the lower S pipe which avoid the extracting.
http://www.talkmorgan.com/ubbthreads.php/topics/193348/1
