Hi I am going to make a start on Revell's Hermann Marwede 1/72 scale and I am thinking of doing it with Eduard photo etch. my problem is, and I hope somebody can help me, is there are thee sets of fret (53013/53014 and 53164) can anyone tell what the different frets are. I know one is for helicopter deck. Is there a fret for the complete boat can't seem to get a simple answer from any supplier. Thank you Brian