WWII ocean-going Tug models?

I'm not sure if this is what you're looking for but it took about 5 seconds to Google. I hope it's worth a look.

Mike

http://www.battlefleetmodels.com/id43.html

Iron Shipwright makes a 1:350 scale resin & brass ATF.  You are not going to find much in plastic.

http://ironshipwrights.com/ships_350.html

I used this kit to make a model of the Abnaki as she appeared when she went out to meet the USS Guadalcanal and revieve her of the tow of the captured U-505.    Unfortunately no pics

The Scale Shipyard has a 1:96th scale fiberglass hull and superstructure for that class - 25.5" long and 4.75" beam.  You'll have to scratchbuild the decks, masts, davits, stack, etc.  The Scale Shipyard also has some fittings available: watertight doors; hatches; fire hoses; etc. 

It is not WW2, but Revell (G) makes a nice modern ocean-going tug.

Hi ;

 If you don't mind the scale , Cornerstone , by Walthers has an H.O tug that can be converted to one . It's a waterline tug so it actually be easier I believe .    T.B.