Clone trooper helmet phase 1 to phase 2?

I am very interested in getting a clone trooper helmet. though my favorite clone helmet is either one of the star wars the old republic Republic trooper helms or phase 2.. is there a guide or did some one make a build converting the phase 1 helmet to a phase 2? if so please post a link or refer me to a video/topic for I may build my own conversion thanks!

There is no conversion from the Phase One to the Phase Two. The helmets are entirely unique from one another. The Republic Commando helmets were however meant to be a bridge between both phases. In my own opinion they didn't do a very good job on that design. No flow, to schizo of a concept. I have only seen one, maybe two good Commando costumes. One of which belongs to a member here and it's pretty darn awesome.