Lewis Boat Works: Custom Boat building and Plans
Variations of Chugger
12 ft versions....The Original and a Displacement version
14ft versions.....Regular, Extended Cabin, Extended Cabin Inclined Transoms and Extended Cabin Displacement.
16 footers.... Regular, Extended Cabin, Extended Cabin Inclined Transoms, Extended Cabin Inclined Transoms Displacement.
As you can see, various features such as lengthening the boat or portions of it, inclining the transoms, narrowing the bows and making the hull into a displacement hull can be used singly or combined to produce a Chugger that is not only a Chugger, but YOUR Chugger. These are only a few of the possible combinations.
I don't think that the 12' version is a good candidate for any modifications other than narrowing the bows a bit and making it a displacement hull. There just isn't enough boat to incline the transoms or increase the length of the cabin, without lengthing the boat overall.