The two ships should be distinct classes, do 17 knots max - since 16.5kn isn't modable - and have correct art.
Ukishima Maru should actually be an AMC instead of an AP.
See http://www.combinedfleet.com/UkishimaM_c.htm
I have "made" some art files that may serve the purpose - pic stolen from the net and modified to fit the purpose.





