MMM Lady T
Rosegarth is possibly more suitable. We have an Applegarth a sister tug in our club and I attach a pic. The garth tugs were a common site on the Mersey before the container port took over. Apart from being a single prop the size and weight are similar to the Lady T. Applegarth pic attached for comparison
Looking forward to seeing your build, whatever you finally choose.
Regards
Dave